CN219103473U - Data acquisition system and refrigeration equipment - Google Patents

Abstract

The utility model discloses a data acquisition system and refrigeration equipment, belonging to the technical field of communication. The data acquisition system disclosed in the utility model includes: a controller, a communication bus and a plurality of sensors; the controller is connected to the communication bus, and each of the sensors is connected to the communication bus; and the controller, It is used to receive the sensor signals transmitted by each of the sensors through the communication bus; since the communication bus connected to the controller is set in the utility model, and then each sensor is connected to the communication bus, thereby reducing the wiring harness in the refrigeration equipment box. The number and complexity of the wiring harness enable easy installation of the wiring harness.

Description

Data acquisition system and refrigeration equipment

technical field

The utility model relates to the technical field of communication, in particular to a data acquisition system and refrigeration equipment.

Background technique

For air-cooled refrigeration equipment products, the continuous addition of sensors can more accurately collect data from the refrigeration equipment and regulate the refrigeration equipment. Therefore, more and more sensors are used in a single refrigeration equipment, such as ambient temperature sensors, Refrigerator temperature sensor, freezer temperature sensor, defrost temperature sensor, special application temperature sensor, etc.

Each sensor is usually directly connected to the controller using a wire harness. As the number of sensors continues to increase, the number of wire harnesses connected to the controller is also increasing, resulting in too many wire harnesses in the refrigeration equipment box, which makes it difficult for employees to install the wire harness. The number of sampling ports of the controller is required to be large.

The above content is only used to assist in understanding the technical solution of the present utility model, and does not mean to admit that the above content is the prior art.

Utility model content

The main purpose of the utility model is to provide a data acquisition system and refrigeration equipment, aiming to solve the technical problem that there are too many wiring harnesses in the refrigeration equipment in the prior art, which makes it difficult for employees to operate when installing the wiring harnesses.

In order to achieve the above purpose, the utility model provides a data acquisition system, which is applied to refrigeration equipment, including: a controller, a communication bus and multiple sensors;

The controller is connected to the communication bus, and each of the sensors is arranged in parallel on the communication bus; and

The controller is configured to receive sensor signals transmitted by each of the sensors through the communication bus.

Optionally, the communication bus includes a data line and a ground line;

The data lines are respectively connected to the controller and one end of each of the sensors;

The other end of each sensor is grounded through the ground wire.

Optionally, the data acquisition system also includes: a power supply; and

The power supply is connected to the power terminal of the controller.

Optionally, the data acquisition system also includes: a current limiting resistor;

One end of the current limiting resistor is connected to the power supply; and

The other end is connected with one end of each sensor through the data line.

Optionally, each of the sensors is connected to the communication bus in cascade.

Optionally, the sensors in the same room are cascaded to the communication bus.

Optionally, the sensor includes at least one of a room temperature sensor, a door sensor, a freezing and defrosting sensor, an ambient temperature sensor, a humidity sensor and a radar temperature sensor.

In order to achieve the above purpose, the utility model also provides a refrigeration device, which includes the data acquisition system as described above.

Optionally, the communication bus in the data acquisition system is set in the foam layer of the refrigeration device.

Optionally, the controller in the data acquisition system is located in the bottom control box of the refrigeration equipment.

The data acquisition system disclosed in the utility model includes: a controller, a communication bus and a plurality of sensors; the controller is connected to the communication bus, and each of the sensors is connected to the communication bus; and the controller, It is used to receive the sensor signals transmitted by each of the sensors through the communication bus; since the communication bus connected to the controller is set in the utility model, and then each sensor is connected to the communication bus, thereby reducing the wiring harness in the refrigeration equipment box. The number and complexity of the wiring harness enable easy installation of the wiring harness.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is the structural representation of the first embodiment of the data acquisition system that the utility model proposes;

Fig. 2 is the prior art schematic diagram of the data acquisition system that the utility model proposes;

Fig. 3 is the structural representation of the second embodiment of the data acquisition system proposed by the utility model;

Fig. 4 is the first structural diagram of the third embodiment of the data acquisition system proposed by the utility model;

Fig. 5 is the second structural diagram of the third embodiment of the data acquisition system proposed by the utility model;

Fig. 6 is a structural schematic diagram of the refrigeration equipment including the data system proposed by the utility model;

Fig. 7 is a schematic structural diagram of a refrigeration device including a data acquisition system in the prior art.

Explanation of reference numbers

label name label name 10 controller 20 communication bus 30 sensor VCC Power supply R1 Current limiting resistor GND ground wire 201 data line

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiment of the utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions Exist, also not within the scope of protection that the utility model requires.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of the first embodiment of the data acquisition system of the present invention. The utility model proposes the first embodiment of the data acquisition system.

As shown in FIG. 1 , in this embodiment, it includes: a controller 10, a communication bus 20 and a plurality of sensors 30;

The controller 10 is connected to the communication bus 20, and each sensor 30 is arranged in parallel on the communication bus 20;

The controller 10 is configured to receive sensor signals transmitted by each of the sensors 30 through the communication bus 20 .

It should be noted that the refrigeration equipment can be refrigerators, freezers, wine cabinets, fresh cabinets, biological medical cabinets, cold chain vehicles, cold chain containers and other equipment. In this application, a refrigerator is taken as an example for description. The structure in the prior art is shown in Figure 2. With reference to Figure 2, it can be known that the current controller 10 is directly connected to each sensor through a wiring harness. There are many wiring harnesses. For example, the distribution of the controller 10 arranged at the bottom of the refrigerator is more than 4 groups of wiring harnesses connected to the controller 10 for refrigerators with simple functions, and more than 10 groups for refrigerators with complex functions. Since the positions of the sensors in the refrigerator are not the same, the wiring harness between the sensor 30 and the controller is relatively complicated, and it is difficult for employees to operate when setting the wiring harness, and it is impossible to conveniently set each wiring harness. In addition, each sensor 30 is directly connected to the controller 10, and each sensor 30 requires a wire harness, resulting in high cost of the wire harness. Each sensor 30 is connected to the controller 10, and the controller 10 needs to be provided with a large number of sampling ports, and the installation cost of the controller 10 is very high.

In this embodiment, in order to solve the above technical problems, the controller 10 and the sensor 30 are arranged in the manner shown in FIG. 1 . The controller 10 shown in FIG. 1 is an independent module for receiving sensor signals collected by each sensor 30 . The sensors 30 in the refrigerator include ambient temperature sensors, refrigerated temperature sensors, freezing temperature sensors, functional temperature sensors, freezing and defrosting temperature sensors, door sensors, humidity sensors, and radar temperature sensors. In this solution, by setting up the communication bus 20, the connection between the controller 10 and each sensor 30 is established by using the communication bus 20, and the sensor data transmission between each sensor 30 and the controller 10 can be carried out through the communication bus 20. In the refrigerator cabinet, only A communication bus 20 needs to be provided. The difference with the current communication structure is that at present each sensor 30 needs to be provided with a corresponding wire harness to connect with the controller 10, but in this embodiment, the communication bus 20 is directly provided, which can avoid that each sensor 30 is connected with the controller 10. Direct connection greatly reduces the number of wiring harnesses in the refrigerator box, thereby reducing the difficulty for employees to install wiring harnesses. And it should be further emphasized that the controller 10 in this embodiment is only connected to the communication bus 20, which can effectively reduce the cost of the controller 10, and there is no direct connection between each sensor 30 and the controller 10, which can reduce the cost of the refrigerator cabinet. wiring harness cost.

In a specific implementation, the wiring harness can be set to directly connect the controller 10 to the communication bus 20, and then each sensor 30 can be connected to the communication bus 20, so as to establish a connection between the sensors 30 of the controller 10 through the communication bus 20. . In addition, each sensor 30 can input the collected sensor signal to the communication bus 20, and transmit it to the controller 10 through the communication bus 20, so as to realize the collection of the sensor signal. For example, the refrigerating temperature sensor in the refrigerating chamber of the refrigerator collects the current temperature signal of the refrigerating chamber, and then transmits the current temperature signal to the controller 10 through the communication bus 20 , thereby realizing the collection of the current temperature in the refrigerating chamber.

Wherein, the sensor signal is a parameter signal in the refrigerator collected by the sensor. The sensor signal may include: an ambient temperature signal, a refrigerator temperature signal, a freezer temperature signal, and the like.

The data acquisition system disclosed in this embodiment includes: a controller 10, a communication bus 20 and a plurality of sensors 30; the controller 10 is connected to the communication bus 20, and each of the sensors 30 is arranged in parallel on the communication bus 30 and the controller 10 receives the sensor signal transmitted by each of the sensors 30 through the communication bus 20; since the communication bus connected to the controller is set in the utility model, then each sensor is arranged in parallel on the communication bus bus, thereby reducing the number and complexity of wiring harnesses in the refrigeration equipment box, and realizing convenient installation of wiring harnesses, and the setting of the communication bus 20 can reduce the cost of wiring harnesses between the controller 10 and the sensor 30 and the cost of the controller 10.

Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of the second embodiment of the data acquisition system of the present invention.

As shown in FIG. 3, in this embodiment, the communication bus 20 includes a data line 201 and a ground line GND;

The data line 201 is respectively connected to the controller 10 and one end of each of the sensors 30;

The other end of each sensor 30 is grounded through the ground line GND.

It should be understood that, in this embodiment, the communication bus 20 can be configured as a set of signal lines, specifically including the data line 201 and the ground line GND, so that the sensors 30 are arranged in parallel between the data line 201 and the ground line GND. The ground GND is a digital ground.

Wherein, the data line 201 can be used to transmit sensor signals to the controller 10 . The signal output terminals of each sensor 30 are connected to the data line 201 . Through the parallel arrangement among the sensors 30, only the data line 201 may be included in the refrigerator cabinet.

Further, the data acquisition system also includes: a power supply VCC;

The power supply VCC is connected to the power terminal of the controller 10 .

It should be understood that the controller 10 of the refrigeration equipment can take power through other power lines in the refrigeration equipment. The power leads at a remote location provide power for the controller 10 . In addition, the power supply voltage required by the controller 10 is completely different from the mains power directly connected to the refrigeration equipment. When the controller 10 takes power through other power lines inside the refrigeration equipment, it also needs to establish a connection with the voltage conversion unit, thereby increasing the power of the refrigeration equipment. The complexity of the wiring harness inside the box.

Aiming at the problem of taking power from the controller 10, the power supply VCC is directly set in this embodiment, and the power supply VCC can directly supply power to the controller 10, preventing the controller 10 from taking power from other power lines, which can further reduce the cooling capacity of the refrigeration equipment box. The complexity of the wiring harness in the body.

In addition, in this embodiment, the data acquisition system further includes: a current limiting resistor R1;

One end of the current limiting resistor R1 is connected to the power supply VCC; the other end is connected to one end of each sensor 30 through the data line 201 .

It should be understood that not only the controller 10 in the refrigeration equipment needs power supply, but also each sensor 30 in the refrigeration equipment needs power supply voltage to work normally. The positions of the sensors 30 are not the same, so when the sensors 30 are powered, the power lead wires of different sensors 30 are not the same, which may lead to more lead wire bundles in the refrigeration equipment box and increase the number of wires in the refrigeration equipment box. The harness complexity.

Based on the above problems, in this embodiment, the power supply VCC can also directly supply power to each sensor 30 through the data line 201 . The power supply end of each sensor 30 is connected to the data line 201 , and the power supply voltage output by the power supply can be directly transmitted to each sensor 30 through the data line 201 . In this process, considering that the performance of the sensor 30 and the controller 10 are not the same, it is also necessary to set a current limiting resistor R1 between the power supply VCC and the data line 201. The most useful current limiting resistor R1 can effectively avoid passing data. Excessive current input from the line 201 to each sensor 30 will damage the sensors 30 .

In this embodiment, by setting each sensor 30 in parallel between the data line 201 and the ground line GND, the number of wire harnesses in the refrigeration equipment box can be effectively reduced. In addition, by setting the power supply VCC and the current-limiting resistor R1, the power supply VCC can be used to supply power to the controller 10, and the data lines 201 can be used to supply power to each sensor 30, which can greatly reduce the number of connections between the controller 10 and the sensors 30 from other power lines. The lead wire setting in the process of taking power further reduces the complexity of the wiring harness in the refrigeration equipment box.

Referring to FIG. 4 , FIG. 4 is a schematic structural diagram of a third embodiment of the data acquisition system proposed by the present invention.

In this embodiment, each of the sensors 30 can be connected to the communication bus 20 in a cascaded manner. The controller 10 is sequentially connected to each sensor 30 through the communication bus 20 . Wherein the first sensor 30 can directly connect the signal output terminal with the communication bus 20, and other sensors can be connected with the previous sensor 30 through the communication bus 20 in turn, so that the sensor signal can be transmitted to the control system through the communication bus 20 and the previous sensor. device 10. For example, when the sensor signal collected by the sensor 2 needs to be transmitted to the controller 10, the sensor 2 can output the sensor signal to the sensor 1 through the communication bus 20 between the sensor 1 and then through the communication bus between the sensor 1 and the controller 20 20 transmits the sensor signal to the controller 10 .

In this embodiment, it is also possible to directly connect the controller 10 to each sensor 30 in sequence, the signal output terminal of the first sensor 30 is directly connected to the main control board 10, and the signal input terminals of other sensors 30 Then, a connection is established between the previous sensor 30 and the communication bus 20 and the controller 10. At this time, only one communication bus is required to cascade the sensors 30 in sequence in the refrigeration equipment box, thereby further reducing the wiring harness in the refrigeration equipment box. the complexity.

Further, in this embodiment, the sensors 30 in the same room are cascaded to the communication bus 20 . In this manner, a connection can be established between the sensors 30 in the same room and the controller 10 through a communication bus 20 , so that the sensor signals collected by the sensors 30 in the same room are transmitted to the controller 10 .

In addition, referring to FIG. 5 , in this embodiment, the sensors in the same room can be arranged in series, and then the first sensor corresponding to each room and the controller 10 are cascaded to each other through the communication bus 20 .

It should be understood that when the sensors 30 and the controller 10 are cascaded through the communication bus 20, the communication bus 20 needs to continuously establish connections with the sensors 30, although the refrigeration equipment box includes only one communication bus 20 , but when the communication bus 20 is set, the direction of the communication bus 20 needs to be constantly adjusted to the position of the next sensor, which will also increase the difficulty for employees to install the wiring harness. Therefore, the sensors 30 in each room are arranged in series in sequence, and then the first sensor in each room and the controller 10 are cascaded through the communication bus 20, which can greatly reduce the installation difficulty in the communication bus setting process. When the sensors 30 are cascaded with the controller 10 , the installation of the communication bus 20 can be realized more conveniently.

Further, the data acquisition system may further include a display device connected to the controller 10, and the controller 10 may output a corresponding display signal to control the display device to display the collected sensor signal when receiving the sensor signal.

The data acquisition system may also include a host computer connected to the controller 10 . The upper computer can output acquisition instructions to the controller 10, the controller 10 can control the corresponding sensor 30 to start acquisition through the communication bus 20, and feed back the sensor signal to the controller 10 through the communication bus 20, and the controller 10 can also send the sensor The signal is sent to the host computer, which stores or analyzes the data.

In addition, in order to achieve the above purpose, the utility model also provides a refrigeration device, which includes the above-mentioned data acquisition system. For the specific structure of the data acquisition system, refer to the above-mentioned embodiments. Since the refrigeration equipment can adopt the technical solutions of all the above-mentioned embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not repeat them here.

Further, referring to FIG. 6 , the communication bus 20 in the data acquisition system is set in the foam layer of the refrigeration device.

It should be understood that the foam layer can be understood as a foam insulation layer, and the foam layer can reduce temperature changes in the refrigeration equipment to a certain extent. In the case that the controller 10 and the sensors 30 are directly connected by wire harnesses, each wire bundle in the foam layer will affect the flow of the foaming agent in the foam layer, thereby affecting the function of the foam layer. However, in the prior art, the wiring harness does not pass through other locations to increase the volume of the refrigeration equipment. Usually, the wiring harness is arranged in the foam layer. Therefore, the function of the foam layer of the refrigeration equipment will be affected by the arrangement of the wiring harness.

In the solution of this embodiment, the controller 10 and each controller 30 are connected by a communication bus 20. At this time, there is only one communication bus 20 in the foam layer, and the blowing agent in the foam layer flows The flow of the foam layer will not be greatly affected, so it will not have an excessive impact on the function of the foam layer.

In addition, referring to FIG. 7 , in the prior art, the controller 10 is arranged in the bottom control box of the refrigeration equipment, so that a large number of wire harnesses pass through the entire refrigeration equipment box body and are connected to the sensors on the upper part of the refrigeration equipment. Therefore, when setting up the controller 10, the specific position of the controller 10 also needs to be considered, so as to avoid a large number of wire harnesses completely passing through the entire refrigeration equipment box.

In this embodiment, the controller 10 in the data acquisition system can be installed in the control box at the bottom of the refrigeration equipment, and connected to the sensors through the communication bus 20, and the position of the controller 10 does not need to be adjusted. , the refrigeration equipment box body also only includes a communication bus 20. At this time, during the installation process of the wiring harness and the controller 10, the position of the controller 10 does not need to be considered, and the controller 10 can be directly arranged in the bottom control box.

In this embodiment, through the setting of the communication bus 20, the influence of the wiring harness on the foam layer can also be effectively reduced, and the position of the controller 10 does not require additional consideration, it can be directly set in the bottom control box.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process conversion made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are all included in the scope of patent protection of the utility model in the same way.

It is worth noting that in the actual application of the utility model, it will inevitably be applied to software programs, but the applicant hereby declares that the software programs used in the specific implementation of this technical solution are all existing technologies. The application does not involve the modification and protection of software programs, but only the protection of the hardware architecture designed for the purpose of realizing the utility model.

Claims (10)

1. A data acquisition system for use with a refrigeration appliance, comprising:

a controller, a communication bus, and a plurality of sensors;

the controller is connected with the communication bus, and each sensor is arranged on the communication bus in parallel;

the controller is used for receiving sensor signals transmitted by the sensors through the communication bus.

2. The data acquisition system of claim 1, wherein the communication bus comprises a data line and a ground line;

the data line is respectively connected with the controller and one end of each sensor;

the other end of each sensor is grounded through the ground wire.

3. The data acquisition system of claim 2, wherein the data acquisition system further comprises: a power supply; and

the power supply is connected with the power end of the controller.

4. The data acquisition system of claim 3, wherein the data acquisition system further comprises: a current limiting resistor;

one end of the current limiting resistor is connected with the power supply; and

the other end is connected with one end of each sensor through the data line.

5. The data acquisition system of claim 1 wherein each of the sensors is cascade connected to the communication bus.

6. The data acquisition system of claim 5 wherein each of the sensors in the same compartment are cascade connected to the communication bus.

7. The data acquisition system of any of claims 1-6, wherein the sensor comprises at least one of a visible light temperature sensor, a door sensor, a freeze defrost sensor, an ambient temperature sensor, a humidity sensor, and a radar temperature sensor.

8. A refrigeration device comprising a data acquisition system according to any one of claims 1-7.

9. The refrigeration apparatus of claim 8 wherein the communication bus in the data acquisition system is disposed within a foam layer of the refrigeration apparatus.

10. The refrigeration apparatus of claim 9 wherein a controller in said data acquisition system is within a bottom control box of said refrigeration apparatus.

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