JPH01148917A - Automatic weighing system of vehicle - Google Patents

Abstract

PURPOSE:To automatically operate the total wt. of a vehicle, by applying data processing to a detection wt. signal on the basis of a signal showing the number of axle. CONSTITUTION:A truck 2 loaded with gravel 4 advances to the right and stops when the front wheels 5 thereof ride on an axle wt. meter 1 and a tag 3 transmits data that the number of axles are two to a ground station 10. At this time, a computer 15 receives not only this data but also the wt. signal from the axle wt. meter 1 through an amplifier 14 and operates the wt. when a front axle rides on the basis of these data. Subsequently, the truck 2 further advances and the rear axle 6 rides on the axle wt. meter 1 and, when the load applied to the rear axle is applied to the axle wt. meter 1, the wt. signal at this time is supplied to the computer 15 through the amplifier 14 to operate the wt. at this time. These wt. detection signals are multiplied by a predetermined coefficient to calculate the total wt. of the track and this calculation result is supplied to a CRT display apparatus 16 or a printer 17 and recorded on a floppy 18.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic weighing system for vehicles, etc. that is suitable for application to a truck scale.

[Prior art and its problems] Some weighing machines for vehicles use an axle load meter.
Conventionally, an operator has to look at the number of axles of a vehicle such as a truck to be weighed and input this into an information processing device using a key. Therefore, if the operator is absent, the axle load meter cannot be used, and even if the operator is present, this input operation takes a considerable amount of time.

[Problem that the invention seeks to solve]

The present invention does not require an operator and can efficiently and automatically measure the total weight of a vehicle, etc. using an axle load meter or even when using another weighing meter. The purpose is to provide heavy-duty systems.

[Means for solving problems]

The above purpose is to equip a vehicle, etc. with a radio transmitter having at least a transmitting section and a storage section, and to transmit a self-identification signal of the vehicle, etc. equipped with the radio transmitter from the radio transmitter to at least a radio receiving station on the ground. In an automatic weighing system for vehicles, etc., the number t of axles of the vehicle, etc. is written in the memory section of the wireless transmitter, and when the vehicle reaches a weighing machine for automatic weighing, information on the number of axles is stored. A vehicle, etc., characterized in that a signal is transmitted to the radio receiver on the ground, and based on the signal, an information processing device connected to the radio receiver calculates the total weight of the vehicle. This is accomplished by an automatic weighing system.

[For production]

A signal representing the number of axles of the vehicle to be weighed is transmitted to a radio receiver on the ground, and based on this signal, the information processing device automatically calculates the total weight of the vehicle from the detected weight signal.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic truck weighing system according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the system of the first embodiment, in which the total weight of a truck (2) is measured on a truck scale (1) using a so-called axle load meter. It moves from left to right in the figure, and once its front wheel (5) reaches the axle load gauge (1), it stops there. This truck (2) is loaded with gravel (4), and in order to measure the loaded weight, we are not trying to weigh the total weight of the truck, but this truck (2) has a circuit shown in Figure 5. A tag (3) with a configuration is provided, and information is exchanged between the tag (3) and the antenna (2) of the ground station QQ.

The ground station axis consists of a reception circuit, the above-mentioned antenna (b) connected thereto, and an information processing device (2) for receiving signals from the reception circuit and processing information.

The information processing device (c) includes an amplifier α◆ for amplifying the weight detection signal from the axle load meter (1), a converter (to) for receiving this signal and performing various arithmetic processing, and a CRT for receiving the output from this. A display device (g), a printer αη, and a 7-point desk (to) as a recording device are connected.

Figure 5 shows the tag (3) attached to the truck (2).
), the signal received by the antenna is supplied to the receiving section (40), and the contents in memory are sent to the transmitting section C311, which is transmitted to the ground station QQ through the antenna diagram. (b).

A control unit G5 is provided between the receiving unit and the memory, and processes the signal received by the receiving unit into an appropriate form as necessary and writes it into the memory, or stores the signal in the memory. I like to drive.

According to this embodiment, when the tag (3) is stored in memory, the number of axles is written in addition to the vehicle number as data unique to this truck. In the embodiment shown in FIG. 1, the fact that there are two axes is stored in the memory of tag (3). Therefore, from the tag (3), the ground station (b) sends a signal indicating that the number of axes is 2 in addition to the vehicle number, and this is received by the receiver a and sent to the information processing device (to). It is designed to be supplied to the converter (2).

The first embodiment of the present invention is constructed as described above, and its operation will now be explained with reference to FIGS. 1 and 3.

In FIG. 1, a truck (2) loaded with gravel (4) moves to the right and stops when its front wheels (5) rest on the axle load gauge (1). Information that the number of axes is 121 is transmitted from the tag (3) to the ground station α0 via the antenna (6). The comviator (g) receives this information as well as the weight signal from the axle load meter (1) via the amplifier (b), and based on this data calculates the weight when the front axle is mounted. There is. Then the truck (4) moves forward further, and then the wheels (6) reach the axle load meter (1).
)get on. That is, when the load applied to the rear axle is applied to the axle load meter, the weight signal at this time is supplied to the combination unit via the amplifier cL4, and the weight at this time is calculated. The front axle (5) and rear axle (6) generate various weight detection signals using the axle load meter, and by multiplying these signals by a predetermined coefficient, the total weight of this truck (2) can be calculated. It will be done. The results are supplied to each output device connected to the combinator (to), such as a CRT display device (a) and a printer (1?), and are also recorded on the A-tsbee (to).

As described above, according to this embodiment, when the truck (2) reaches the axle load meter (1), the operator looks at the number of axles and determines the number of axles when the truck (2) reaches the axle load meter (1). ) can be used to automatically weigh the total weight of the truck (2) without the need for input, for example by pressing a key. Therefore, there is no need for an operator to input the number of axes, the cost can be reduced, and the total weight of the truck (2) can be quickly weighed. Figure 3 shows the weight at the Otori level when the front wheel (6) is on, that is, when the l is on, and the weight at the level b when the rear wheel (6), which is the rear axle, is on. However, the total weight of Citruk (2) is calculated based on the sum of the magnitudes of these weight detection levels & and b, or in some cases, by multiplying this by a predetermined coefficient. ing.

FIG. 2 shows an automatic truck weighing system according to a second embodiment of the present invention. In this embodiment, the truck advances from left to right in the figure; According to this, on the track scale QD, the truck does not stop and passes through that ``1\\, and this truck (c)
The total weight of 7 is measured. In the drawings, parts corresponding to those in FIG. 1 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

In this embodiment, the information processing device includes a data processing device for non-stop weighing, which is further equipped with a combiator, and sends the weight detection signal from the truck scale C111OA-Docell through amplifier α4 to the non-stop weighing device. The important data processing iRω receives this, and from the tag (3) provided on the other truck, the number of axles of this truck @3#, that is, this truck has front wheels (24J, front rear wheel ■, rear rear wheel ■
The antenna is equipped with three axes, and information representing the number of axes "3" is transmitted from the tag (3) to the antenna. This is supplied to the non-stop weighing data processing device ■ via the receiver Q1J, and the track (c) is
The total weight of the truck is calculated based on the passage of the truck over the truck scale 12Il and the weight detection signal obtained from the KO-dossel n. Also, the distance t between the truck's front wheels (24+ axle and the rear rear wheel ■ axle,
is the length t of the scale Qυ, and y is small.

The second embodiment of the present invention is constructed as described above, and its operation will be explained next.

In Fig. 2, the truck (C) is moving from left to right, and when its front wheels first land on the truck scale (211), the weight detection signal is "C" as shown in Fig. 4. ＃ level.Then, proceeding further, the front and rear wheels will rise to the level 1d" weight detection signal when they also reach the truck scale (21).Then, the rear rear wheels will also reach the truck scale Qυ When the weight is on the top, the weight detection signal rises to @e'' level, which means that all wheels are on the truck scale (2Il), but on the other hand, this signal from the tag box (3) Since the number of axes of the truck at the time is "+" is transmitted to the data processing device for non-stop weighing via the antenna (b) and the receiver C1M, this third axis is the number of axes on the truck scale (21+). It is recognized that the total weight of this truck has been weighed since the level 1C" when the truck was reached.However, the time when the full weight is weighed is only a short time), and at each level, the average value is Since it is calculated, the level e signal alone is unstable, so the total weight of the truck is not calculated.It is simply detected that all three axes of the truck are on it.

Next, the front wheel c! 4 is truck scale CL! When moving away from υ, the detection level of the load cell prisoner becomes f. In other words, rear wheel c! Only 51@ is on it. This state lasts for a relatively long time. And the front rear wheel is scale Q
When the vehicle is away from υ and only the rear wheel ■ on the rear side is on the vehicle, it is at level t. The duration of this state is short and unstable. Furthermore, measuring this value requires highly accurate and expensive equipment.

In the end, since levels C and f remain stable for a relatively long time, the total weight of the truck is calculated from the sum of the average values of levels C and f.

Although not shown, the calculation result may be displayed on a display connected to the data processing device for non-stop weighing.

As described above, in the second embodiment as well, the total weight of the truck can be quickly weighed without requiring an operator.

Particularly, in this embodiment, the weight can be weighed without stopping, so that the entire weight can be weighed in a shorter time than in the embodiment shown in FIG.

Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiments, two-axis and three-axis tracks have been described, but the number of axes is of course not limited to these, and the present invention can also be applied to tracks with four or more axes.

Furthermore, in the first embodiment, when the wheels of each axle reach the axle load meter (1), the weight is stopped immediately, but it is also possible to measure the weight without stopping as in the second embodiment. can.

〔Effect of the invention〕

As described above, according to the automatic weighing system for vehicles, etc. of the present invention, there is no need for the operator to check the number of axes and input it using the input key to the information processing device, and the system automatically weighs the vehicle, etc. The total weight of the product can be quickly measured.

[Brief explanation of the drawing]

FIG. 1 shows an automatic truck according to a first embodiment of the present invention. FIG. 2 is a side view showing the weighing system; FIG. 2 is a side view showing the second embodiment; FIGS. 3 and 4 are time charts and FIG. The figure shows a block diagram of a tag as a radio transmitter used in the above embodiment. In the figure,

Claims (1)

[Claims] A vehicle, etc., equipped with a radio transmitter having at least a transmitting section and a storage section, and capable of transmitting a self-identification signal of the vehicle, etc. equipped with the radio transmitter from the radio transmitter to at least a radio receiving station on the ground. In automatic weighing systems such as
The number of axles of the vehicle, etc. is written in a storage section of the wireless transmitter, and when the vehicle reaches a weighing machine for automatic weighing, an information signal of the number of axles is transmitted to the wireless receiver on the ground;
An automatic weighing system for vehicles, etc., characterized in that the total weight of the vehicle is calculated by an information processing device connected to the wireless receiver based on this signal.