JPH01191295A - Abnormality monitor system - Google Patents

Abstract

PURPOSE:To set an address at a position remote from a sensor by separately disposing a setting device for forming and transmitting a wireless signal from the sensor and using the wireless signal from the setting device. CONSTITUTION:The address is set at the position remote from the sensor 2 by using the wireless signal from the setting device 4. The set address can be recognized by disposing a display part and further, an address storing part 12 is constituted of an EEPROM, and then, an informing number storing part 16 for accumulating and storing the number of times of informing can be disposed in the storing area to stored the number of times of informings, read it and know the generating frequency of erroneous information or the like. The setting device 4 for transmitting the wireless signal to the sensor 2 is disposed, thereby, a command for transmitting an informing signal from the sensor 2 to a receiver, displaying the number of times of informing on a display art or resetting the contents of the informing number storing part 16 is added to attain a high function.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention is a system in which a sensor equipped with a sensing section for use in disaster prevention, crime prevention, etc. is connected to a receiver via a sensor line. The present invention relates to an abnormality monitoring system that performs signal transmission between a receiver and a receiver by time division multiplex transmission.

[Prior Art] The basic configuration of this type of abnormality monitoring system is as shown in FIG. That is, a plurality of sensors 2 are connected to the receiver 1 via the sensor line 3. The sensor 2 can be classified into a sensor with a unique address and a sensor with an address, but the following will focus on a sensor with an address. The receiver 1 sends a transmission signal Vs to the sensor line 3, and this transmission signal Vs
For example, as shown in FIG. 4, there is a start signal ST indicating the start point of signal transmission, an address signal AD that specifies the address of the sensor 2 and calls each sensor 2, and various signals for the sensor 2. It is a time division multiplexed signal including a control signal CD for sending a command and a return standby signal WT for setting a return period from the sensor 2. In each sensor 2, # between sensors! The transmission signal V transmitted from the receiver 1 via 3
It is detected whether the address data included in the sensor 2 matches the address data uniquely set in the sensor 2, and if they match, the control data of the transmission signal Vs is read and the transmission signal Vs is Return standby signal WT
Monitoring data is sent back in synchronization with the As shown in FIG. 5, each sensor 2 generates a transmission signal Vs based on the output of the sensing section 11, which detects the surrounding environment such as fire, smoke, leakage, intruder, etc. A ε processing unit 13 is provided to carry out the processing.

Since each sensor 2 has an address set as described above, each sensor 2 is not provided with an address setting section 12'. The address setting section 12° is generally composed of a dip switch.

[Problem to be solved by the invention] The sensor 2 is often placed on the ceiling or the upper part of the wall.
In order to operate the address setting section 12, which is a dip switch, it is necessary to go up to a high place. That is, when setting the address of the sensor 2, move the stepladder, climb on the stepladder, remove the cover of the sensor 2, etc., and set the address (1. Attach the cover of the sensor 2, The process of stepping down from the stepladder is a single setting operation, and when setting the addresses for the vi number sensors 2, this process is repeated, making the work cumbersome and time consuming. Additionally, since the work is done at heights, there is a risk of the stepladder tipping over.

The present invention aims to solve the above-mentioned problems, and aims to enable the work to be carried out safely and easily in a short time without using a stepladder or the like when setting the address of a sensor. It is something to do.

[Means for solving the vA problem] In the present invention, each sensor can store and retain address data without power supply, and the stored address data can be used as an address unique to the sensor. An address storage unit and a wireless receiver (N
When the address No. 13 transmitted from the receiver and the address data in the address storage unit match, the sensing unit returns the detected data to the receiver and writes data to the address storage unit based on the wireless signal. The above object is achieved by a configuration in which a setting device for creating and transmitting a wireless signal is provided separately from the sensor.

Furthermore, it is desirable to provide a display section for displaying an address specific to the sensor on at least one of the receiver and the sensor, and the display on the display section can be started based on a command from the setting device. Can be done.

Furthermore, an alarm signal may be transmitted from the sensor to the receiver based on a command from the setting device.

Further, if the address storage section is formed of an EEPROM, an alarm number storage section for cumulatively storing the number of alarms of the sensor can be provided in the storage area of the EEPROM, and at least one of the receiver and the setting device Based on a command from one side, it is also possible to display the number of alarms on the display section or reset the contents of the number of alarms storage section.

[Function] According to the above configuration, by using a wireless signal from the setting device, address setting work can be performed at a location away from the sensor.

Further, by providing a display section, it is possible to confirm the set address.

Furthermore, if the address storage section is configured with an EEPROM, an alarm number storage section for cumulatively storing the number of alarms can be provided within the storage area, and by storing and reading out the number of alarms, You can know the frequency of false alarms, etc.

In addition, by providing a setting device that transmits a wireless signal to the sensor, the alarm signal can be transmitted from the sensor to the receiver, the number of alarms can be displayed on the display, and the number of alarms can be stored. You can add commands to reset or cut the contents of a section to make it more functional.

[Embodiment 1] The sensor 2 is configured as shown in FIG. 1, and includes a sensing unit 11 that detects the surrounding environment such as fire, smoke, gas leak, intruder, etc., and stores an address unique to the sensor 2. an address storage section 12 that receives the transmission signal Vs, processes the signal, and forms and transmits a return signal.
The transmitter/receiver 14 and the like are provided for mutually converting the transmission signal Vs and the internal signal of the signal processing section 13.

The signal processing unit 13 is configured using a microprocessor or the like, and when an address signal from the receiver 1 is input, it compares it with the address data stored in the address storage unit 12 and determines whether it matches. Then, it will read the control data and perform the operation according to the command contained in the control data.

Further, the signal processing unit 13 creates monitoring data based on the state of the surrounding environment detected by the sensing unit 11 and sends it back to the receiver 1 in synchronization with the return standby signal. For example, in the case where the sensing unit 11 detects a fire, when the sensing unit 11 detects the occurrence of a fire and issues an alarm, the alarm signal is synchronized with the return standby signal and sent back to the receiver 1. It is. The address storage unit 12 is an EEPROM
The memory contents can be rewritten and data can be retained without power supply.

In addition, an EEPROM constituting the address storage section 12
An alarm number storage unit 16 is provided in the storage area, and the contents of the alarm number storage unit 16 are updated to a value obtained by adding 1 to the previous value each time the sensing unit 11 issues an alarm. It looks like this.

A wireless reception section 15 is connected to the signal processing section 13, and the address data written in the address storage section 12 is set based on the wireless signal received by the wireless reception section 15. A setting device separate from the device 2! ! 4, and transmitted from the wireless transmission section 22 of the setting device 4 using infrared rays. Here, the wireless receiving section 15
An operation check light 17 made of a light emitting diode is also connected to the 1M processing unit 13, which may use a transmission medium such as ultrasonic waves in addition to infrared rays, between the wireless transmission unit 22 and the wireless transmission unit 22.

The wireless signal transmitted from the setting device 4 to the sensor 2 is composed of commands and data, and the commands include an address setting command, an address confirmation command,
Six types of alarm output commands, self-diagnosis commands, alarm count output commands, and alarm count reset commands are set. For example, each wireless signal has a data length of 12 bits, and corresponding to each command, the upper 3 bits represent the command, A0 to A represent the address, and P represents the parity. .

The type of command and address data are set using the operating section 21 of the setting device 4, and sent as a wireless signal from the wireless transmitting section 22, which is then received by the wireless receiving section 15 of the sensor 2. .

The address setting command is accompanied by address data, and when the wireless signal of this command is received by the wireless receiving section 15, the address data included in this wireless signal is transmitted to the address storage section 12 via the signal processing section 13. It is written in . Therefore, sensor 2
The address becomes the set address from now on. Wireless signals other than address setting commands do not include address data.

When the address confirmation command is received, the operation confirmation light 17 blinks to display the address data stored in the address storage section 12. That is, if the address data is 8 bits, for example, 0 is displayed with the light on for 0.2 seconds and off for 0.8 seconds, and 1 is displayed with the light on for 1.2 seconds and 0.
．． Address data can be expressed by turning off the light for 8 seconds and blinking 8 times.

In the alarm output command, a pseudo alarm signal equivalent to that when the sensing unit 11 issues an alarm is transmitted to the receiver 1.
In addition to inspecting the functionality of the transmission system, it is also possible to confirm addresses.

When a self-diagnosis command is transmitted, self-diagnosis of the function of the sensor 2 is started, and the result is transmitted to the receiver 1.

In response to the alarm number output command, the contents of the alarm number storage section 16 are transmitted to the receiver 1, and at the same time, the number of alarms is displayed by blinking the operation confirmation light 17. Here, the operation confirmation light 17 is 8
If configured to display bit data,
Since the maximum value of the display value is 255 (FFH), if the number of times the alarm is issued exceeds 255, it is displayed as 255.

In the alarm number reset command, the contents of the alarm number storage section 16 are reset, and the number of alarms is set to O.

An outline of the operation of the signal processing section 13 will be explained below based on FIG. 2. When the power is turned on, it is determined whether a wireless signal is input to the wireless receiving section 15, and if there is no wireless signal, a transmission signal is transmitted/received. In this state, the sensing unit 11 is monitored and the sensing unit 11
The presence or absence of an alarm from is detected. When the sensing section 11 issues an alarm, the contents of the alarm number storage section 16 are updated by adding 1 to the contents. Further, the receiver 1 is notified of the alarm by a transmission signal.

Meanwhile, when a wireless signal is received, it decodes the wireless signal. First, the type of command is identified, and the above-mentioned processing is performed according to each command.

Note that, in consideration of the first use of the system after installation, it is desirable to set address data in the address storage section 12 as a specified value in advance at the time of shipment.

[Effects of the Invention] As described above, the present invention provides a writable address storage unit in which each sensor can store and hold address data without power supply, and the stored address data is used as an address unique to the sensor. and a wireless receiving unit that receives a wireless signal including address data written in the address storage unit, and a sensing unit detects that the address signal transmitted from the receiver matches the 7th response data in the address storage unit. A signal processing section that sends data back to the receiver and writes data to the address storage section based on the wireless signal is connected to the signal processing section that sends data back to the receiver. By using wireless signals from the setting device, address setting can be performed at a location far from the sensor, eliminating the need for work at heights, making it safe, quick, and easy. This has the advantage that the address setting work can be done immediately.

A display section for displaying an address specific to the sensor is provided on at least one of the receiver and the sensor, and the display on the display section is started based on a command from the setting device. If so, you can check the set address.

Furthermore, by transmitting an alarm signal from the sensor to the receiver based on a command from the setting device, a pseudo alarm can be issued and the transmission system can be inspected.

Further, if the address storage section is formed of an EEPROM, an alarm number storage section for cumulatively storing the number of alarms of the sensor can be provided in the memory area 1i of the EEPROM, and at least one of the receiver and the setting device Based on commands from one side, it is possible to display the number of alarms on the display and reset the contents of the alarm number memory. By storing and reading out the number of alarms, false alarms can be detected. It is possible to know the frequency of occurrence, etc., and it is possible to improve the functionality.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the sensor used in the present invention, FIG.
FIG. 4 is a schematic VT diagram of the abnormality monitoring system according to the present invention, FIG. 4 is an operational explanatory diagram showing the 7-order transmission signal, and FIG. 5 is a block diagram showing a conventional sensor. DESCRIPTION OF SYMBOLS 1... Receiver, 2... Sensor, 3... Sensor line, 4... Setting device, 11... Sensing part, 12...
...Address storage unit, 13...Signal processing unit, 15...
・Wireless reception unit, 16... Alarm frequency storage unit, 17
...Operation confirmation light, 21...Operation section, 22...Wireless transmission section. Agent Patent Attorney Ishi 1) Long Seven! 182Figure 3Figure 4Figure 5

Claims (9)

[Claims] (1) Multiple sensors, each with a unique address, are connected to a receiver via a sensor line, and data is transmitted between the receiver and each sensor using transmission signals sent from the receiver. In an abnormality monitoring system, each sensor is transmitted by division multiplexing, and the transmission signal includes an address signal for accessing each sensor, and a return standby signal for setting the data return period from the sensor. a sensing unit that detects the environment; a writable address storage unit that can store address data without power supply and uses the stored address data as a unique address for the sensor;
A wireless receiving unit receives a wireless signal including address data written in the address storage unit, and a receiver receives data detected by a sensing unit when the address signal transmitted from the receiver matches the address data in the address storage unit. and a signal processing unit that writes data into the address storage unit based on the wireless signal, and a setting device that creates and sends the wireless signal is provided separately from the sensor. Anomaly monitoring system. (2) The abnormality monitoring system according to claim 1, wherein the sensor is provided with a display unit that displays a unique address. (3) The abnormality monitoring system according to claim 2, wherein the display section is provided in the receiver, and address data is transmitted as data from the sensor to the receiver. (4) The abnormality monitoring system according to claim 2, wherein the display unit is an operation confirmation light provided on the sensor and displays the address in a blinking state in response to the address data. (5) The abnormality monitoring system according to claim 2, wherein the display on the display unit is started based on a command from the setting device. (6) The abnormality monitoring system according to claim 1, wherein an alarm signal is transmitted from the sensor to the receiver based on a command from the setting device. (7) The abnormality monitoring system according to claim 1, wherein the address storage section is formed of an EEPROM. (8) In the storage area of the EEPROM, there is provided an alarm number storage unit that cumulatively stores the number of alarms of the sensor, and the number of alarms is determined based on a command from at least one of the receiver and the setting device. Claim 7 characterized in that the number of alarms is sent back to the receiver and displayed on a display section provided on the receiver, or the number of alarms is displayed in a blinking state of an operation confirmation light provided on the sensor.
Described anomaly monitoring system. (9) In the storage area of the EEPROM, an alarm number storage unit is provided that cumulatively stores the number of alarms of the sensor, and the number of alarms is determined based on a command from at least one of the receiver and the setting device. 8. The abnormality monitoring system according to claim 7, wherein the contents of the storage section are reset.