JPH08249576A - Crime preventing receiver - Google Patents

Abstract

PURPOSE: To facilitate telephone line processing while effectively utilizing a telephone line by providing a telephone line processing means for receiving data from plural crime prevention reporting devices having the different communication systems of data. CONSTITUTION: When there is a call on the telephone line, while referring to a communication system memory 12, a CPU 10 sends out a transmission permission signal at the frequency of a system A. Afterwards, the CPU 10 waits for a prescribed time and when data are received within this time, the data of the system A are judged. Then, those data are analyzed and written in a data memory 11 while referring to the contents of the system A written in the communication system memory 12 and processing finishes. When there is no data transmission during the prescribed time, however, the CPU 10 sends out the transmission permission signal at the frequency of a system B. Afterwards, the CPU 10 waits for a prescribed time and when data are received within this time, the data of the system B are judged. Then, those data are analyzed and written in the data memory 11 while referring to the contents of the system B written in the communication system memory 12 and processing is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security receiver provided in a security company or the like.

[0002]

2. Description of the Related Art A device generally called a center device is installed at a location for centrally managing security information of a security company. As shown in FIG. 4, this center device is composed of a crime prevention receiver 1 and a data processor 2 such as a personal computer.

Although not shown in FIG. 4, a security alarm device having terminal devices such as a security sensor such as a heat ray sensor, a fire sensor, a gas leak sensor, etc. is installed in a security place such as a general home or an office building. Therefore, when there is an intruder or a fire occurs, the crime prevention notification device at the location notifies the center device of the occurrence of an abnormality. In addition, not only when an abnormality occurs in the crime prevention reporting device,
There is also known one provided with a function of periodical notification that periodically notifies the center device at predetermined time intervals.

In FIG. 4, the security receiver 1 is connected to a plurality of office lines. As shown in FIG. 5, the security receiver 1 includes a plurality of office line boards 3 and a control board 4. In addition, each station line is connected to a different station line substrate 3. One telephone number is assigned to one station line, and each station line is notified of a predetermined number of security reporting devices, for example, 100 security reporting devices. . That is, one local line board 3
Can be said to manage, for example, 100 security reporting devices. It should be noted that each crime prevention reporting device is provided with an ID number.

Next, the operations of the central line board 3 and the control board 4 will be described. Upon receiving a notification from the crime prevention reporting device, the station line board 3 first captures the station line, receives and analyzes the data transmitted from the crime prevention reporting device, and converts the format of the data into a predetermined format. Processing to store in a memory (not shown). At this time, it goes without saying that these data are stored for each ID number of the crime prevention notification device.

The control board 4 sequentially and cyclically accesses each station line board 3, and when the station board board 3 is accessed from the control board 4, the data stored in the memory is transferred to the control board 4. When the control board 4 receives the data from the central line board 3, the control board 4 transfers the data to the data processing device 2.

As a result of the above operations, the monitor of the data processing device 2 shows in what state each of the crime prevention notification devices is currently, or when any abnormality occurs, which crime prevention notification device reports an abnormality. Information such as whether or not has been performed will be displayed.

[0008]

However, the conventional crime prevention receiver has a problem that only one station line can receive a report from a crime prevention report device of the same manufacturer or a crime prevention report device of the same model. This is because the data communication method of the crime prevention reporting device usually differs depending on the manufacturer, and even the same manufacturer may differ depending on the model. In this specification, the communication method includes both communication timing and communication protocol. Therefore, the timing of communication,
That is, it is said that the communication systems are different even when the sequences are different, and the communication systems are different even when the communication formats are different, that is, the protocols are different. Furthermore, it is said that the communication system is different even when the frequencies used are different.

Therefore, in the conventional security receiver,
The central office board 3 needs to be prepared for each manufacturer or model of the crime prevention reporting device to be managed, which is not only very troublesome but also causes an increase in cost.

Further, it has been extremely troublesome to assign which station line of the center apparatus is to be notified for each of the crime prevention reporting devices.

An object of the present invention is to solve the above-mentioned problems and to provide a crime prevention receiver capable of receiving a report from a crime prevention reporter of a different communication system on one station line. Is.

[0012]

In order to achieve the above-mentioned object, the security receiver of the present invention is a security receiver for receiving data transmitted from a security alerting device via a telephone line. The present invention is characterized by including station line processing means for receiving data from a plurality of security reporting devices of different systems.

[0013]

The station line processing means receives the data transmitted from the crime prevention reporting device via the telephone line, but the station line processing means is adapted to support a plurality of communication systems. There is.

As described above, in the crime prevention receiving apparatus according to the present invention, since it is possible to receive data from a plurality of crime prevention reporting apparatuses having different data communication systems on the same station line, the station line can be effectively used. can do. Further, unlike the conventional case, it is not necessary to create the station line processing means for each maker or model of the crime prevention reporting device, and the station line processing means can be easily designed, contributing to cost reduction.

Furthermore, when assigning a central line to which each of the security reporting devices is to be notified, it is not necessary to consider the maker or model of the security reporting device as in the conventional case. Therefore, the task of assigning the station line can be easily performed, which contributes to the improvement of the work efficiency.

[0016]

Embodiments will be described below with reference to the drawings.
FIG. 1 is a diagram showing a configuration of an embodiment of a central line board 3 used in a security receiver according to the present invention.
Is a CPU, 11 is a data memory, 12 is a communication method memory, 13 is a setting switch, and 14 and 15 are interfaces (hereinafter referred to as I / F).

The CPU 10 receives the data transmitted from the security reporting device when the security reporting device reports.
The data is analyzed, the data is converted into a predetermined format, and the data reception processing is performed, and the operation of the central line board 3 is centrally managed.

The data memory 11 is for storing the data received from the crime prevention reporting device and converted into a predetermined format.

The communication system memory 12 is a memory in which the contents of each communication system used in the crime prevention notification device, for example, timing, protocol, used frequency, etc. are written.

The setting switch 13 is for setting which communication method data is to be received by the station line board 3, and is constituted by a digital switch or a DIP switch.

The reason why the setting switch 13 is provided is as follows. Currently, the number of communication methods used in crime prevention reporting devices is very large. Of course, it is natural that the contents of all these communication systems can be stored in the communication system memory 12, but since the sequences, protocols, and frequencies used are various, one station line board 3 can be used. It is difficult in reality to support all of the communication methods currently used, and it is a good idea to support two or three types of communication methods for one station line substrate 3. It has been found.

Therefore, it is necessary to determine which communication method is to be used for each station line board 3, and the setting switch 13 is provided for that purpose.
Which communication method is to be used for is the timing until data is transmitted from the crime prevention notification device side when a transmission permission signal (hereinafter referred to as ENQ signal) is transmitted from the central line substrate 3 side. As will be described later, two or three types of communication methods, which have greatly different timings from the transmission of the ENQ signal to the data transmission, are selected, or the ENQ signal is It has been confirmed that it is sufficient to select two or three types of communication schemes in which the timings from transmission to data transmission are not the same, but are substantially the same.

The I / F 14 is an interface for connecting the office line to the office line board 3, and the I / F 15 connects the office line board 3 to the control board 4 (not shown in FIG. 1). It is an interface to do.

Next, regarding the operation of the CPU 10, FIG.
This will be described with reference to the time chart of FIG.

In FIG. 2, the setting switch 13 selects two types of communication systems in which the timing from the transmission of the ENQ signal from the station line board 3 side to the transmission of data from the crime prevention reporting device is greatly different. It is a timing chart which shows operation in the case. Here, these two selected communication systems will be referred to as A system and B system. Therefore, the crime prevention reporting device that reports to the central line board 3 is only the system that communicates by the A system or the B system.

Now, when there is a call on the central line (see FIG. 2)
T ₁ of (A)), CPU 10 captures the office line (FIG. 2
T ₂ of (B)), and sends an ENQ signals at a frequency of one of the communication methods. Here, it is assumed that the ENQ signal is first transmitted to the office line via the I / F 14 at the frequency of the A system. Figure 2
T _{3 in} (C) indicates this timing. At this time, the CPU 10 naturally reads the frequency of the ENQ signal in the A system by referring to the communication system memory 12, and sends the ENQ signal at the read frequency.

After that, the CPU 10 waits for a predetermined time.
If the data is received within this time, it can be determined that the data is data according to the A method.
Reference numeral 10 refers to the contents of the A method written in the communication method memory 12, analyzes the data, converts the data into a predetermined format, and writes the data in the data memory 11. At this time, it is natural that the data is written in the area assigned to the ID number of the crime prevention reporting device that has transmitted the data.

When the data thus received is written in the data memory 11, a reception completion signal (hereinafter referred to as an ACK signal) is transmitted and the processing is ended. In addition, this A
It goes without saying that the frequency of the CK signal is also the frequency defined in the A system written in the communication system memory 12.

However, if no data is transmitted within the above-mentioned predetermined time, then the ENQ signal is transmitted at the frequency of the other communication method. Therefore, in this case, the CPU 10 sends the ENQ signal to the I / F 14 at the B system frequency.
Will be sent to the local line via the. T _{4 in} FIG. 2D
Indicates this timing.

After that, the CPU 10 waits for a predetermined time, and if the data is received within this time, it is judged that the data is the data by the B system, and the contents of the B system written in the communication system memory 12 are referred to. Then, the data is analyzed, converted into a predetermined format and written in the data memory 11, and an ACK signal corresponding to the B system is transmitted, and the processing is ended.

By the above operation, it is obvious that a single office line can receive a notification from a crime prevention notification device of a different communication method.

In FIG. 3, two kinds of timings from the transmission of the ENQ signal from the side of the central line board 3 to the transmission of data from the crime prevention notification device by the setting switch 13 are not the same but almost the same. 7 is a timing chart showing an operation when a communication method is selected. Here, these two selected communication methods will be referred to as C method and D method. Therefore, the crime prevention reporting device that reports to the central office line board 3 is only one that communicates by the C system or the D system.

Now, when there is a call on the station line (see FIG. 3)
T ₁ of (A)), CPU 10 captures the office line (Fig. 3
T ₂ of (B)), and sends continuously the ENQ signals corresponding to ENQ signals and D method corresponding to the C method. Figure 3 (D)
'S t ₃ shows the timing of sending ENQ signals corresponding to C type, t ₄ of the figure shows the transmission timing of the ENQ signal corresponding to the D mode. The frequencies of these ENQ signals are, of course, the frequencies specified by the C system and the D system, respectively.

After that, the CPU 10 waits for a predetermined time. When data is received within this time, C
The PU 10 is the C written in the communication method memory 12.
Based on the contents of the method and the D method, it is determined whether the transmitted data is of the C method or the D method, and the content of the data is analyzed and converted into a predetermined format. Write to the data memory 11.

When the data thus received is written in the data memory 11, the CPU 10 successively sends an ACK signal corresponding to the C method and an ACK signal corresponding to the D method, and ends the processing. In FIG. 3D, t ₅ indicates the transmission timing of the ACK signal corresponding to the C method, and t _{6 in} FIG.
Indicates the transmission timing of the ACK signal corresponding to the D system.

By the above operation, it is apparent that one office line can receive a notification from the crime prevention notification device of a different communication method.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made. For example, in the above embodiment, the case where two types of communication methods are selected has been described, but the same applies when three or more types of communication methods are selected.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of a central line board 3 used in a security receiver according to the present invention.

[FIG. 2] Operation when two types of communication methods are selected by the setting switch 13 in which the timing from the transmission of the ENQ signal from the central line board 3 side to the transmission of data from the crime prevention notification device is greatly different 2 is a timing chart showing

FIG. 3 shows two types of communication systems in which the timing from the transmission of the ENQ signal from the central line board 3 side to the transmission of data from the crime prevention reporting device is not the same but is substantially the same by the setting switch 13. 6 is a timing chart showing an operation when selected.

FIG. 4 is a diagram showing a schematic configuration of a center device.

FIG. 5 is a diagram showing a configuration example of the security receiver 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Security receiver, 2 ... Data processing device, 3 ... Local line board, 4 ... Control board, 10 ... CPU, 11 ... Data memory, 12 ... Communication method memory, 13 ... Setting switch, 1
4, 15 ... Interface (I / F).

Claims (1)

[Claims] 1. A crime prevention receiving device for receiving data transmitted from a crime prevention reporting device via a telephone line, comprising station line processing means for receiving data from a plurality of crime prevention reporting devices having different data communication systems. Security receiver characterized by.