JPH01166291A - Wireless transmission system - Google Patents

Abstract

PURPOSE:To freely monitor only an arbitrary warning zone and to improve flexibility and reliability by receiving and processing only a security signal from a wireless transmitter registered at the time of a registering mode. CONSTITUTION:When an initial registration switch 27a is operated, a receiver is set to the registering mode, and all the data registered in a system registering means 22 are erased. When an initial registering mode is set, the security signal transmitted from the wireless transmitter is received by an antenna 2a, decoded at a front end/decoder part 20, and security data, namely, monitoring data, to which a housing code, a warned zone code, a unit code, and a function code are added, are fetched. The decoded security data is inputted to a discriminating means 21, it is discriminated whether the housing code of the security data coincide with another housing code previously set at a setting device 21a or not, and when they are coincident, the security data are registered in the registering means 22, and an ID code is registered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an improvement of a unidirectional wireless transmission system used in a wireless monitoring system using weak radio waves.

[Background technology]

This type of system is constructed by combining one wireless receiver and multiple wireless transmitters, and the receivers in the system are wireless transmitters attached to security sensors, fire sensors, etc. Activates the alarm means when it receives a security signal in the form of a radio wave signal from a portable wireless emergency transmitter carried when an elderly person walks alone or a sick person is away from a caregiver. The system is configured to monitor the system by displaying the location where an abnormality has occurred on a display.

In such wireless systems, a house code is attached to the security signal sent from the transmitter, and by checking the match of this house code on the receiver side, it is possible to communicate with other wireless systems. Consideration is usually taken to prevent interference. However, in such a system, an alarm is generated if the house codes match, so it is not possible to divide the system into multiple warning codes and activate only one code. It could not be said to be sufficient.

Further, in order to simplify the configuration of the conventional wireless system as described above, it is a unidirectional communication system in which a security signal is sent from the transmitter to the receiver side only when an abnormality occurs. For this reason, the system's transmission checks were not performed, so even if an abnormality occurred in the transmission system, the abnormality could not be discovered until it was put into actual operation, resulting in insufficient reliability. .

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and its main purpose is to provide a highly flexible wireless transmission system that can freely monitor any security zone within the wireless system depending on the purpose of use. The purpose is

Another object of the present invention is to provide a highly reliable wireless transmission system that can reliably detect abnormalities in wireless transmitters in a warning zone that are in operation, even in a unidirectional communication system.

[Disclosure of the invention]

In order to achieve the above object, the present invention is proposed as a security signal in the form of a radio wave signal, which is security data in which a house code, a warning zone code, a unit code, and a function code are attached to monitoring data such as an alarm signal emitted from a sensor, etc. In a wireless transmission system that combines a plurality of wireless transmitters that output a There is a registration mode that is set to process only security signals emitted from any of the wireless transmitters, and a registration mode that processes only security signals from registered wireless transmitters and displays security information, as well as alarm alarms. The system is configured to be able to selectively execute the alert mode, which performs necessary processing such as driving the , a front end/decoder section that extracts security data with a function code; b) each mode setting switch that switches the receiver between registration mode and warning mode; and C) security data extracted from the front end/decoder section. a house code match determination means for determining whether the house code of the data matches a house code preset in the receiver; and d) an ID consisting of a warning zone code and a unit code assigned to each wireless transmitter monitored by the system. system data registration means capable of registering at least a code; and e) comparing and referencing the ID code of the security data extracted by the front end/decoder section with the ID code already registered in the system data registration means. f) an ID code display having a display control switch and displaying the ID code of the data whose house codes have been confirmed to match by the house code match determining means; g) When the registration mode is selected by the registration mode setting switch, a security signal is sent from the wireless transmitter. Each time a message is received, among the security data taken out from the front end/decoder section, the ID codes of the security data whose house codes have been confirmed to match by the house code match determination means are sequentially registered in the system data registration means. h) When the alarm mode is selected by the alarm mode setting switch, each time a security signal is received from the wireless transmitter, the house code is selected from among the security data retrieved from the front end/decoder section. Only the security data for which the match between the house code and the ID code has been confirmed by the match determining means and the ID code match determining means is displayed together with the ID code on the security information display means, and at the same time, the alarm activation means is activated to issue an alarm. It is characterized by a structure that allows necessary processing such as making the device ring.

In addition, in order to achieve the above-mentioned other object at the same time (the feature of the system of the present invention proposed in II), the wireless transmitter periodically inserts a function code included in the security signal transmitted from the transmitter in the form of a radio wave signal. On the other hand, each time the receiver receives a security signal transmitted from a wireless transmitter, the receiver transmits the above-mentioned ID code in addition to the ID code of the security data retrieved by the front-end/decoder section. A function code specifying the presence or absence of periodic transmission can be registered in the system data registration means, and a periodic transmission abnormality determining means is provided for determining an abnormality in periodic transmission from a wireless transmitter for which periodic transmission is specified based on the function code. When the receiver is set to the registration mode, the receiver registers the function code indicating the presence or absence of periodic transmission in the system data registration means together with the ID code, and when the receiver is set to the alert mode, the function code included in the system is registered. The periodic transmission abnormality determining means determines whether or not there is periodic transmission from the wireless transmitter whose function code with periodic transmission is registered in the system data registration means at a predetermined period sufficiently longer than the periodic transmission time interval of the wireless transmitter. When it is determined that there is an abnormality, the regular transmission abnormality is displayed on the security information display means together with the ID code.

Example Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 explains an example of the use of the system of the present invention.
A indicates a wireless transmitter, and B indicates a wireless receiver.

The wireless transmitter indicated by A is available in various types depending on the purpose of monitoring the system, and all of them are equipped with a wireless transmitter and an antenna for transmitting a security signal inside the main body.

11 and 12 are wireless transmitters used by connecting to the fire sensor Sa and security switch sb, respectively (the one in 11 is shown with a part of its cover cut away to expose the internal loop protector). house code, which will be described later, is included in monitoring data such as fire sensor alarms and window opening/closing detection signals.

Security data with a warning zone code and unit code is generated, and a carrier radio wave is modulated with this data to form a security signal, which is then radiated from each antenna in the form of a radio wave signal.

On the other hand, reference numerals 13 to 15 are portable wireless transmitters carried by people who require nursing care such as the elderly and sick, and which transmit emergency signals by pressing pushbutton switches 132 to 15a in the event of an emergency. , is radiated in the form of a radio wave signal from an antenna equipped with security No. 13 similar to the transmitters 11 and 12 described above.

Security signals transmitted from these wireless transmitters 11 to 15 are received by receiver B, and necessary measures for security are taken. Receiver B, when receiving the security signal transmitted from each wireless transmitter A, decodes the monitoring data and takes necessary measures such as activating an alarm (not shown). It has an antenna 2a for receiving, and a display section 24 for displaying security information according to the security signal received via the antenna 2a.

In addition, the monitoring data display 2 provided in the receiving SB is shown in FIG. 1a.
4b and the details of the display control switch.

FIG. 2 shows a schematic configuration of the internal circuit of a portable wireless transmitter A among the wireless transmitters used in the system of the present invention.

The wireless transmitter A includes a CPU 10A which constitutes the main part of a 1-chip microcomputer, a wireless transmitter IDB, and house code, zone code, and unit code setting devices IDC to I which consist of multiple dip switches.
DE1 has an operation switch SWa that is pressed in the event of an emergency, and when the operation switch SWa is pressed, the CPU10A detects this state and sends the house code to the emergency signal.

Security data (see FIG. 3) with a zone code and unit code attached is sent to the wireless transmitter IDB, and is transmitted in the form of a radio wave signal via the antenna tOa.

Here, the house code means the unique code assigned to the security system, the zone code means the unique code assigned according to the monitoring area (warning zone) of the wireless transmitter, and the unit code means the unique code assigned to each transmitter. are doing.

In addition, SWc is a supervisor setting switch, which enables the receiver side to detect abnormalities in the wireless system by outputting a regular signal from the wireless transmitter A to the receiver B at predetermined time intervals. and
Further, SWb is a tamper switch provided as necessary, and outputs an abnormal signal when the cover of the wireless transmitter A is removed.

Further, the IOF is a small voltage drop device that detects a voltage drop in a battery (not shown) built into the wireless transmitter A, and detects a dead battery.

In the wireless transmitter A of this embodiment, the supervisor setting switch SWc allows periodic transmission of security data in a function code to be described later.

When the voltage drop detector IDE detects a dead battery, a dead battery signal with a house code, zone code, and unit code is sent from the wireless transmitter IDB in the form of a radio signal in the same way as an emergency signal. (See Figures 3a and 3b).

FIG. 3 shows an example of the structure of the signal form of the security signal transmitted from the wireless transmitter A.

In the figure, one unit of the security signal is the pause time Tk
The format is such that a pre-receive Tp is provided at the beginning of two frames of data divided by , low battery signal.

A tamper signal) is provided, followed by a function code, and finally a backup code and an odd parity check code.

The house code is 8 bits from H7 to HO, the zone code is 3 bits from Z2 to ZO, and the unit code is from U2 to
The UO has a 3-bit configuration, and the monitoring data and function code have a 4-bit and 2-bit configuration, respectively.

3rd aryJ shows the bit configuration diagram of the monitoring data, and Figure 3b shows the bit configuration diagram of the function code.In SO to S3 of the monitoring data, there is information on the dead battery and tamper 1 alarm, respectively, and information on the abnormality. Sometimes the data is "1", and when it is normal, the data is "0", and the function code FO, F
l contains information on the presence or absence of periodic transmission and the presence or absence of OFF output.
In either case, ``1'' is placed when there is nothing, and ``0'' is placed when there is. In addition, S3 is provided as a reserve,
Normally, no information is given.

Here, the presence of periodic transmission means a so-called supervision function that transmits a signal from wireless transmitter A to receiver side B at fixed time intervals to detect abnormalities in the transmission system.
The FFFF output color is used when a wireless transmitter is attached to a device such as a window sensor that outputs ON when the window is open and outputs OFF when the window is closed, and when it is attached to a wireless transmitter that outputs ON when the window is opened and OFF when the window is closed. This setting is made so that the receiver B can distinguish the case where the receiver B is attached to something that is not installed, so that it does not interfere with display control.

In order to improve the reliability of such security signals, if an abnormality occurs in the wireless transmitter A, a 5-frame signal is transmitted from the wireless transmitter A at predetermined intervals, and a 2-frame signal is transmitted during periodic transmission. is transmitted continuously at predetermined time intervals.

In contrast to the wireless transmitter A having the above-described configuration, the configuration of the receiver, which is a main part of the system of the present invention, is as shown in FIG.

The basic configuration of the receiver is the same as wireless transmitter A, consisting of a combination of a microcomputer and its peripheral equipment, but in order to facilitate understanding of the system of the present invention, FIG. The configuration of the device is shown as a block diagram combining means for realizing each function.

To explain with reference to the figure, receiver B has each mode setting switch 2 for switching to registration mode and warning mode.
7.28. Front end/decoder section 20. House code match determining means 21. ID code match determination means 23.
System data registration means 229 for registering any wireless transmitter A in the system Display control switch 25
It has a security information display means 24 which is a combination of an ID code display 24a and a monitoring data display 24b (see FIG. 1) for displaying monitoring data, and an alarm activation means 26 for driving an alarm. It is composed of a combination of

The registration mode setting switch 27 is an initial registration switch 27a for realizing initial registration and additional registration, which will be described later.
and an additional registration switch 27b.

Referring to this figure, the basic operation of the receiver B constituting the system of the present invention will be explained.
When 7a is operated, receiver B is set to registration mode,
All data registered in the system data registration means 22 is erased.

When this initial registration mode is set, a security signal transmitted from the wireless transmitter A in the form of a radio wave signal is received by the antenna 2a, decoded by the front end/decoder section 20, and then the security signal is transmitted from the wireless transmitter A in the form of a radio signal. data, i.e. house code, security zone code,
unit code.

Monitoring data with a function code is retrieved (third
(see figure).

The decoded security data is thus input to the house code matching determination means 21, which determines whether the house code matches the house code previously set in the house code setting device 21a on the receiver side, and If the codes match, it is determined that the security signal is from the wireless transmitter A included in the system monitored by the receiver B, and is registered in the system data registration means 22.

In this way, the security signal transmitted from the wireless transmitter A is registered in the address of the system data registration means 22 one after another each time a match of the house code is confirmed, and the security signal transmitted from the wireless transmitter A is registered in the address of the system data registration means 22 one after another. An ID code consisting of a zone and unit code will be registered.

In this way, in the initial registration mode, all the data registered in the system data registration means 22 is cleared first, and all the ID codes of the wireless transmitter A received by the receiver B side are cleared in the system data registration means 22. 22
However, in the other additional registration mode, only the newly received ID codes of wireless transmitter A are successively registered without erasing the ID codes already registered in the system data registration means 22. It will be registered.

Then, registration is completed with these steps, and the registered ID is
The code can be confirmed by operating the display control switch 25 provided on the security information display means 24. That is, among the plurality of operation switches 25 provided on the security information display means 24,
Operate the scroll start switch 25a (1st a)
(see figure).

Then, the ID code of the wireless transmitter A registered in the system data registration means 22 is sent to a display memory (not shown), and the ID codes are sequentially displayed in ascending order of the ID code.
The code will be scrolled and displayed on the code display 24a. In the system of the present invention, only security signals having ID codes registered in the system data registration means 22 are processed when executing the alert mode, which will be described later. It can be easily confirmed whether wireless transmitter A is actually registered.

FIG. 5 shows an example of a data table constituting the system data registration means, and in the figure, zone 8. A total of 64 wireless transmitters divided into units 8
The D code can be registered along with other data.

The registration of the ID code in the system data registration means 22 shown in FIG. 4 includes the function of directly registering the ID code of wireless transmitter A. 5a, 2nd 5th
Data as shown in Figure b is recorded.

In other words, in the example shown, addresses with zones and unit codes assigned to all wireless transmitters A in the system are prepared in advance, and all units in zones 1 to 6 have the periodic transmission function enabled. Only the wireless transmitters that are registered are registered (see FIG. 5a), and the ID code is registered by setting the corresponding registration identification flag r1. Furthermore, the configuration is such that data f2 that defines whether or not there is an OFF output from the wireless transmitter can be registered as is, and a confirmation flag f3 for periodic transmission, which will be described later, can also be set. Then, in the unit in zone 7.8, a wireless transmitter without an OFF output is registered, a corresponding registration identification flag f1 is set, and data f4 defining the presence or absence of the OFF output of the wireless transmitter is registered, Furthermore, the configuration is such that a confirmation flag f3 for periodic transmission can be set.

Note that the data f2. shown here. f4 indicates what is included in the function code included in the security data from the wireless transmitter, and flags fl and f3 are reset on the receiver B side.

Needless to say, if the system of the present invention does not have a supervisory function, the registration of data f4 and the setting and resetting of flag f3 are omitted.

When a table like the one shown in the figure is used to register the ID code, there is an advantage that the memory capacity can be reduced compared to the case where the ID code is directly registered.

The OR column for alarms U1 to U8 provided at the right end of the table is used to store abnormalities in monitoring data for each zone, and is provided to send an abnormality signal to the main controller side, which will be described later, for each zone. It is something that was given.

FIG. 6 is a schematic flowchart illustrating the operation of the registration mode executed in the system of the present invention.

As mentioned above, the registration mode can be set to two types: initial registration mode and additional registration mode, and when either registration mode switch is operated, step ID0
0. In each ID01, an initial registration mode and an additional registration mode are distinguished, and if the initial registration mode is set, the process proceeds to step ID06 and all data registered in the data table 22 is erased, but if the additional registration mode is set. In this case, such table clearing is not performed and the process directly proceeds to step ID02.

Stella 7' ID02 determines the human power of the front end/decoder section 20, and if there is an input, determines whether the house code matches (step ID03).

The house code is determined by checking whether the house code of the security signal received and decoded by the front end/decoder unit 20 matches the house code preset in the receiver B. Then, the ID code of the security data is displayed on the security information display means 24 and registered in the data table 22 (steps ID04 and ID05).
), but if it is determined in step ID03 that the house code does not match, the ID code of the security data is only displayed on the security information display means 24 and is not registered in the data table 22 (step ID03).
(See D07).

The above-described procedure is repeated every time there is an input from the decoder section 20, and ID codes whose house codes are confirmed to match are sequentially registered in the data table 22.

Thus, after the ID code of the wireless transmitter is registered in the system data registration means 22, as described above,
The scroll start switch 25a of the display control switch 25 provided on the security information display means 24 is operated. Then, regardless of the registration order, the ID codes registered in a predetermined order are scrolled and displayed, so it can be easily confirmed whether the wireless transmitter in the target security zone has been registered.

In this case, if the ID code is not registered depending on the registration mode, for example, rOJ
rOJ and blank are displayed, and when an ID code is registered, rOJ rOJ is erased and the registered ID code is displayed. In order to facilitate the display of completion of the scroll display, All you have to do is insert a blank display.

FIG. 7 shows a flowchart executed to confirm the ID code registered in the registration mode, and the data table shown in FIG. 5 is used as the system data registration means 22. step 2000
→ 2011 is a routine that executes the ID code registration motor, steps 2012, 2013 → 2019 are scroll display routines that are executed to confirm the registered ID code, and steps 2023 to 2029 are the routine that executes the registered ID code.
The step-up display routine is executed to check the D code one by one by operating the step-up switch 25c, and steps 2032-2040 are the program shown in the example diagram 0 showing the step-down display routine executed by operating the step-down switch 25d. Now, when the scroll start switch 258L is operated, a scroll display routine is executed, and the registered ID codes are displayed in order from the first (younger) address on the ID code display 24a. Then, when the scroll stop switch 25b is operated, the step tip inch 25C, and the step down switch 25d are operated,
The parameter n is incremented (Inc
) and decrement (shown as Dec), and the ID code display 24a starts displaying step amplifier and step down in order from the next ID code.

Note that in the example, the parameter n is in the data table.

The operation in the registration mode has been described above, but in this system, when the alarm mode setting switch 28 provided on the receiver B is operated, the following alarm mode is executed.

An outline of the operation in this warning mode is shown in FIG. 8, so the operation in this mode will be explained with reference to this figure. When the input of the decoder section 20 is recognized in step 3000, step 3001 In this case, matching of house codes is determined in the same manner as in the registration mode.

Data that has been confirmed to match the house code will be processed in step 3.
In step 002, it is further determined whether the ID codes match, and the registration is confirmed. In this way, the security data whose registration has been confirmed is classified into monitoring data in steps 3003→3005, and if there is an abnormality in any of the monitoring data, the process proceeds to step 3006, where an alarm is activated and the security information fI1 is displayed. In the means 24, the I
D code and monitoring data are displayed (step 3007
).

On the other hand, if the house codes match but the ID codes do not match in step 3001, the ID code of the received security signal is displayed on the ID code display (step 7, step 3008).

FIG. 9 shows a configuration in which the system of the present invention is further expanded, and is provided with a condition memory 29 that stores the monitoring data together with the ID code each time a security signal is received from the wireless transmitter A. It shows.

In a system provided with such a digital memory 29, information on the occurrence of abnormality in the system is stored, so that the cause of theft or fire can be determined later. In a system including such a condition memory 29, it is desirable to store the security data received from the wireless transmitter A in the order in which they occurred, and to read them out in the order in which they occur.

FIG. ID is a diagram showing the relationship between the condition memory and the security information display means 24, and the condition memory 29 stores the monitoring data of 16 steps in its interface.
The ID code of the security data and the monitoring data are stored in steps 1 to 16 in order of occurrence.

When reading out stored data, when a display data readout control means (not shown) is activated, step 1 is performed.
The ID code is read out sequentially from the data stored in the 7-segment display 24 provided for each zone and unit.
In a, the monitoring data is displayed by lighting up the LED display 24b corresponding to the data.

Here, rAJ of the LED display 24b is an alarm signal (
(alarm), rTJ indicates a tamper signal, and "L" indicates a dead battery signal, but in a system that includes a periodic transmission abnormality determination means, which will be described later, an indicator "S" indicating a periodic transmission abnormality is further provided ( (See Figure 1).

FIG. 11 shows an example of a flowchart executed when monitoring data stored in the condition memory 29 is displayed together with an ID code.

Step 4000→40ID is the display control switch 25
The data executed when the scroll start switch 25a is operated and stored in the memory 29 are displayed one after another on the security display means 24 at 2 second intervals in the order of occurrence, and if the data is not registered, The display will be blank. In addition, to indicate the division of data in 16 steps, after displaying a series of registered data,
A blank display is provided.

Further, steps 4011→4018 show a so-called step-up display routine, which is started by operating the scroll stop switch 25b and the step-up switch 25c, as in the case of ID code confirmation in the registration mode. be done. In this example, the step amplifier display differs from the scroll display in that step amplifier display is performed sequentially starting with the next data.

Further, steps 4019-4025 indicate a step-down display routine that is started by operating the step-down switch 25d. Similar to the step amplifier display routine, this routine also has a structure in which the next data is sequentially displayed in a step-down manner.

Further, by further expanding the system of the present invention, it is also possible to configure the system to check for abnormalities in the periodic transmission of the wireless transmitter A.

FIG. 12 shows a basic configuration diagram of the system in this case, in which the above-mentioned condition memory 29 is added to the basic system shown in FIG. 30 has been added.

The basic configuration is the same as in Figures 4 and 9, so
The configuration of the periodic transmission abnormality determination means and its determination principle will be described without repeating the explanation of the overlapping parts.

To determine whether there is an abnormality in periodic transmission, register the ID code of wireless transmitter A as well as the function code Fo (see Figure 5b) that specifies periodic transmission in the address of the system data registration means 22. If there is a periodic transmission from the transmitter A, the configuration is such that the periodic transmission confirmation flag r3 can be set as described above (see FIGS. 5 to 5b).

Then, at intervals sufficiently longer than the periodic transmission time interval of wireless transmitter A, the set state of the confirmation flag r3 is determined, and then the confirmation flag "3 is reset. The period for confirming this periodic transmission is as follows. If the wireless transmitter A to be monitored requires particular reliability, the wireless transmitter A to be monitored can be configured with a number of individual timer means, or if reliability is not so required, only one timer means can be used. It is also possible to create a configuration in which the .

For example, FIG. 13 shows a case in which one timer means is used in common for the abnormality determination operation of such periodic transmission, and the set time of the timer means is specified as 4 hours.
The periodic transmission time interval of the wireless transmitter is shown set to 1.2 hours.

When there is a regular transmission from wireless transmitter A, the front end/decoder section 20 receives and decodes it and extracts security data. The retrieved security data is checked for house code matching by the house code match determining means 21, and is further passed to the ID code matching determining means 2.
3, it is determined whether the received wireless transmitter A is registered.

As a result of this determination, if it is confirmed that the wireless transmitter A is registered, a periodic transmission confirmation flag f3 is set in the corresponding address of the system data registration means 22, indicating that periodic transmission has occurred. Ru. In this way, the wireless transmitter A performs periodic transmission every 1.2 hours, and the system data registration means 22 sets the periodic transmission confirmation flag f3 to the corresponding address each time.

On the other hand, the regular transmission abnormality determination means 30 determines the state of the regular transmission confirmation flag r3 set in the system data registration means 22 at each set time of the timer means, that is, every time the timer means times out. That is, when the timer means times up, the system data registration means 2
The regular transmission confirmation flags f3 of the addresses specified as having periodic transmission No. 2 are referred to all at once, and when the determination of the confirmation flags f3 is completed, the set flags are reset.

At the time of such determination, if the flag has been reset, it is determined that there is an abnormality in regular transmission, and the periodic transmission abnormality information and ID code are displayed on the security information display means 24, and at the same time an alarm is activated. Means 26
Necessary measures, such as setting off alarms, will be taken through the system. Furthermore, in a system provided with the condition memory 29, the abnormality data (supervisor trouble) at this time is stored together with the ID code.

Figure 13 shows the logical operation for determining an abnormality in periodic transmission of one specific wireless transmitter, and (a)
(b) is the status of the regular transmission confirmation flag, (C) is the abnormality determination timing by the timer means, and (d) is the regular transmission that occurs when determining an abnormality in the regular transmission. Indicates an abnormal signal (supervisor trouble alarm).

5000→5018 in FIG. 14 shows an example of a flowchart when abnormality determination of regular transmission is incorporated during execution of the warning mode.

In this program, for convenience of explanation, every time the timer times up, all addresses O in the data table 22 are
Although periodical transmission is confirmed by referring to steps 63 to 63, it goes without saying that other programs may be used to confirm the periodic transmission.

Furthermore, FIGS. 15(a) to (C) show the abnormality determination operation of regular transmission when one wireless transmitter is provided with one timer means (setting time is 4 hours). In this case, each time there is a reception input for periodic transmission from wireless transmitter A, the corresponding timer means is reset, so that reception is not received within the set time (4 hours) of the timer means. If not confirmed, the timer means times out and generates a supervisor trouble alarm.

6000-6018 in Fig. 16 is a specific usage example of Fig. 15, which has an individual timer means in a zone 6 wireless transmitter for the purpose of monitoring fire sensors etc. that require high accuracy. This example shows an example in which a periodic transmission abnormality determination routine is incorporated into a warning mode program for a wireless transmitter in zone 6. Unit codes 1 to 8 are assigned to each wireless transmitter in zone 6, and the corresponding 4-hour timer is assigned to each wireless transmitter in zone 6. ? -UNIT (n) 4H is provided. 6011
→6018 indicates a subroutine that is executed by referring to the periodic transmission confirmation flag for each unit.

In the system of the present invention having the above-described functions, when setting the registration mode, the ID code of the wireless transmitter can be registered, and when in the alert mode, among the security signals from the wireless transmitter A received by the receiver B, the ID code of the wireless transmitter can be registered. Although it is possible to configure the system to process only those registered in the registration mode, it is also possible to set the test mode by devising a program that executes the system of the present invention.

7000-7021 in FIG. 17 show the basic operation in the test mode. After the registration mode is finished, operate the test mode setting switch (shown as test switch 31 in the example in FIG. 1a). Then, the alarm LED that flashes when an alarm signal is received will flash to indicate that the test mode has been entered (step 7001), and the ID code display 24a of the security information display means 24 will display the registered wireless transmitter A. ID codes are scrolled in sequence at 2 second intervals (7005-7009).
When executing this program, it is sufficient to first read the data registered in the data table 22 into another display memory, and then read the data in this memory when displaying.

Then, when the wireless transmitter A is made to emit a test signal and the received security signal is determined to be an alarm signal on the receiver B side, the [D code is sequentially erased from the above-mentioned scroll display. Line <(701
5 → 7021), if the received and decoded security signal is not an alarm signal due to a trial operation, but is another abnormal signal (e.g., tamper signal, !other error signal), the alarm is activated. , stores the abnormal data together with the ID code in the condition memory 29 (7015
-7020).

If you run the test mode in this way, the ID codes of wireless transmitters that are operating normally will be erased from the scroll display, and the ID codes of wireless transmitters that have not completed test operation will remain in the scroll display. left behind. In addition, as for the wireless transmitter in which an abnormality has occurred, its ID code and abnormality data are stored in the condition memory 29, making it easy to deal with the occurrence of an abnormality and to check operation during testing. All you need to do is test the wireless transmitters randomly on site.
This also has the advantage of easy maintenance.

Incidentally, in the above explanation, the configurations of the wireless transmitter A and the receiver B, which are the main components of the present invention, have been explained in detail. However, when considering the actual usage of the system of the present invention, it is necessary to install a main controller in the receiver. A connected system configuration is common.

Therefore, the following describes the system configuration when the main controller is connected to the receiver.

In configuring the system, it is desirable that the main controller side be provided with a warning zone setting and a display means for displaying abnormalities in the warning zone. In the latter case, the abnormality may be displayed as long as it can be displayed in units of warning zones.

FIG. 18 shows the external configuration of the main controller MC, in which warning switches 51 to 58 . Warning indicator lamps 51a to 58 that display the setting status by lighting them
a. It is configured to include warning lamps 51b to 58b that blink when an abnormality occurs in a zone under warning, an alarm device 50, and a resent switch 59 for restoring the system.

In addition, in order to execute a special vigilance mode described later, home vigilance 61. A going-out warning switch 62 and corresponding operation indicator lamps 61a and 62a are provided, as well as a test mode setting switch 63 for executing the above-mentioned test mode and its indicator lamp 63a. In this example, since the receiver B is integrated into the main controller MC, the antenna 2a is provided.

FIG. 19 is a circuit configuration diagram of the switch group provided on the main controller MC side, and FIG. 20 is a circuit configuration diagram of its display section, and the same symbols as those shown in FIG. 18 are used. The corresponding figures are shown below.

When configuring such a system, it is necessary to transmit the signal processed on the receiver B side to the main controller MC side, and for this reason, the communication between the computer on the receiver B side and the computer on the main controller MC side is It is necessary to properly transfer data between the two.

In the system of the present invention, it is particularly important to pay attention to the case where the abnormal signal (security data) processed on the receiver B side is transmitted to the main controller MC side for display. It is necessary to consider the characteristics of the attached sensor.

As mentioned above, some of the wireless transmitters 38 of the present invention detect the opening and closing of a window, etc. and transmit a security signal when the window is opened and closed. , some devices transmit a detection signal as Security No. 18 only at the moment of detection.

If such a signal is processed on the receiver B side, it can be treated as an abnormal signal as shown in -, but when transmitting a signal for display to the main controller MC side, the display should match the sensor operation. In order to do so, signals specifying these types must be transmitted.

In consideration of this, in the system of the present invention, as shown in FIG. 5b, a function code is provided in the security signal transmitted from the wireless transmitter A, and the function code F
1, the two are distinguished by defining data indicating whether there is an OFF output or not. In this case, the function code with OFF output means a device configured to send an OFF signal when the window is closed, such as a window sensor, and the function code without OFF output means a sensor that sends an OFF signal when the window is closed. This means that the OFF signal is not transmitted.

The security data with such a function code is sent from the receiver B side to the main controller MC side (thereby, on the main controller MC side,
For those without OFF output, after the security data is sent, - fixed time alarm lamps 51a to 58a
It is sufficient to display the warning lamp by lighting it up, and if there is an OFF output, the alarm lamp may be kept blinking until the OFF output is received.

In addition, in the above configuration, when receiver B receives a security signal from the wireless transmitter 38 in the alert mode, if the house code matches and the registration is confirmed, it activates the alarm, and at the same time sends the security signal. The ID code of the wireless transmitter that transmitted the message and the monitoring data are displayed on the display unit 24, but in an actual system, such detailed information is not necessary, and it is possible to display in which zone an abnormality has occurred. It would be good if it could be displayed depending on the operation of the sensor.

For this reason, on the main controller MC side, alarm lamps (LEDs) 51b to 58b are provided corresponding to each zone.

(Left below) Next, the necessary configuration for receiving and passing signals between the main controller MC and the receiver B will be described.

Table 1 shows the structure of a memory used as a communication unit to hand over data transmitted from the receiver B to the main controller MC side.

(Left below) As shown in Table 1, the communicator installed on the receiver B side constitutes a 4-byte data packet, and the 2nd and 3rd bytes are sent from the receiver B side to the main controller MC side. It constitutes a TEXT area that stores data to be sent to. The second byte is a status byte for receiver B, in which the control 1 signal from receiver B is stored together with the status, and the third byte is a flag 21 indicating the warning zone where an abnormality has occurred as a channel byte. ~Z8 is assigned and configured.

The first byte stores hexadecimal data 02, and the fourth byte is provided for checking the data of the second and third bytes.

Here, in NXTPMSG, when this flag changes from 0 to 1, the main controller MC side can update the current message buffer that stores the message to be sent to the receiver B side, but until this flag changes from 0 to 1,
The main controller MC side is required to continue sending the same message.

In addition, DEVICE stores the assigned address of receiver B, and RFU is an unused area, RFP
AIL is for memory check, and when a trouble occurs in the memory on the receiver B side, the flag changes from 0 to 1.

TAMPER, LOBAT, and 5UPERV are status flags that indicate a tamper signal, a dead battery signal, and a periodic transmission abnormality, respectively, and when an abnormality occurs, these flags are set.

Furthermore, flags 21 to Z8 of zones where an abnormality has occurred are set in the channel area.

Table 2 shows the configuration of a memory for passing data from the main controller MC side to the receiver B side as a communicator.

(Leaving space below) As shown in Table 2, the communicator provided on the main controller MC side constitutes a 5-byte data packet, and the 2nd to 4th bytes are transferred from the main controller MC side to the receiver B side. The second byte is the controller MC control status byte, the third byte is the bypass setting byte, and the fourth byte is the 24-hour alert setting byte. ing. The 3rd byte bypass setting and 4th byte 24-hour warning setting are for each zone 21 to Z8.
This is done by setting a flag in the bit assigned to . The first byte stores hexadecimal data 02, and the fifth byte is provided for a thumb check of the second and third bytes.

Here, in NXTPMSG, when this flag changes from 0 to 1, the receiver B side can update the current message buffer that stores the message to be sent to the controller MC, but until this flag changes from 0 to 1, the receiver B side can update the current message buffer that stores the message to be sent to the controller MC. Device B is required to continue sending the same message.

Also, DEVICE stores the address assigned to receiver B, and TSTMODE is a flag that is set from O to 1 when the test mode is set, and while this flag is set, other The COMMAND bit is ignored. TMPSTORE can be bypassed or
Temporary memory stores abnormal signals that occur only in warning zones where 4-hour warning has not been set (described later)
While this flag is 1, abnormal signals that occur only in warning zones that are not set to bypass or 24-hour warning are written to temporary memory, but while this flag is 0, In this case, the abnormal signal is not stored in the temporary memory or condition memory.

The types of COMMANDs shown in Table 3 are used in the system of the present invention.

(Left below) Table 3 [Commands to receiver] The contents of such COMMAND are as follows.

0) POLL Indicates that COMMAND is not sent from the controller to the receiver.

The controller is first used to obtain the current status of the receiver.

1) XFER (transFER) When this COMMAND is issued, the receiver temporarily
Transfer all information in memory to condition memory.

Information in temporary memory is transferred on a FIFO (first in, first out) basis.

2) CLRBOTH (CLeaRBOTH) This COM
When MAND is issued, the receiver clears all contents of condition memory and temporary memory.

3) CLRTEMP (CLeaRTEMPorary
) When this COMMAND is issued, the receiver clears all contents of temporary memory.

4) CLRPERM (CLeaRPERManant
) When this COMMAND is issued, the receiver clears all contents of the condition memory.

5-7) RFU (Reserved for F
(unused area) (In the unused area main controller MC, the following precautions can be set for data reception with the receiver B side.

[Zone settings]

Any one of the warning zones 1 to 8 can be set to be in operation.

Each zone will be on alert throughout the day according to the program24
Although the alarm is set to time alarm, the following bypass setting is also possible in order to cancel a part of the alarm that has been set.

・Setting bypass warning Each zone can be set as bypass warning, which ignores the signal even if there is an abnormal signal, but if you set the next home and out 2 individual warnings, the predetermined zone becomes the bypass warning setting.

Furthermore, in order to take appropriate precautions when at home or when going out, the following precautions can be set by operating the wet cultivation panel of the main controller MC.

1) Home alert When you press the home alert switch 61, the home alert LED 61 will be displayed.
a lights up.

While at home, residents constantly open and close indoor doors, so the indoor security zone is set to bypass, but only entrances and exits.

The window zone becomes alertable, and the alert LED 61a lights up.

In addition, in this case, from the main body, r T M P S T
OREJ and rXFERJ commands are sent.

To cancel the home alert, press the home alert switch 61 again.
Press.

Then, the home alert LED 61a goes out, and the indoor alert zone bypass setting is canceled.

In addition, the warning LEDs in the entrance/exit and window zones are also turned off.
The TMPsTOREJ and rXFERJ commands are also reset.

However, if the alarm unit of the system issues an alarm, such a reset will not be possible.

2) Going out warning When you press the going out warning switch 62, the going out warning LED 62
a lights up.

In order to eliminate inconvenience when residents return from going out, indoor and exit warning zones are set to be bypassed for a certain period of time (for example, 15 seconds), and the bypass is canceled after that certain period of time. For this reason, the system of the present invention is provided with a temporary memory.

The entrance and window zones become alertable, the alert LED lights up, and the alert LEDs of all zones light up.

In this case, rTMPSTOREJ is sent from the main unit.

command is sent.

Even if an abnormal signal other than the 24-hour warning or bypass warning zone is received during going out, if the reset switch 59 is not pressed within a certain period of time, "XFERJ" will be activated. is set.

To cancel the going out alert, press the going out alert switch 62 again.
Press.

Then, the going-out warning LED 62a goes out, and the warning LEDs of all zones go out.

Additionally, rTMPsTOREJ is also reset.

However, if the alarm unit 50 of the system issues an alarm, such a reset will not be possible.

3) Individual vigilance When the vigilance switches 51 to 58 of each zone are pressed, the vigilance LEDs 51a to 58a corresponding to the one pressed light up, and the bypass is set except for that zone.

"rTMPsTOREJ, rXFER" are set from the main body.

When the warning switches 51 to 58 of each zone are pressed again, the warning LEDs 51a to 58a are turned off and the bypass setting is canceled.

At this time, rTMPsTOREJ and rXFERJ are reset.

However, if the alarm unit of the system issues an alarm, such a reset will not be possible.

Addition or deletion of security zones is performed by pressing the security switch for each zone, and input to the security switch for zones that are set to be on alert 24 hours a day is not accepted.

Furthermore, when the main controller MC receives an alarm from the receiver B, it operates as shown in Table 4.

(Left below) If the reset switches 5 and 9 are not pressed within a certain period of time (approximately 20 seconds), the LED flashes and the alarm 64 sounds intermittently.

[Canceling the alarm]

When the reset switch 59 is pressed once, rCLRTEMPJ is sent, which causes the alarm to stop ringing.

Moreover, when the reset switch 59 is pressed again, the blinking of the LED is stopped and the state returns to the state before the alarm.

[Test mode]

When the test mode switch 63 is pressed, the LED in the test mode
63a lights up, and r and TsTMODEJ are set.

Press Test Mode Sinchiro 3 again to switch to L during test mode.
ED63a lights up and rTsTMODE is set.

[Operation when status is human powered]

rRFFAILJ, rTAMPERJ, rL.

When the status of BATJ or rsUPERVJ is input, the buzzer sounds intermittently.

When the reset switch 59 is pressed, the ringing stops.

Note that the system is configured to give priority to a warning signal (alarm) over the status.

Alert setting priority The vigilance set prioritizes support.

FIG. 21 is a system diagram showing the relationship between receiver B and main controller MC.

Finally, the actual operation of the system of the present invention will be further explained with reference to the flowchart of control processing shown in FIG.

In this flowchart, a temporary memory is provided to enable the going out alert mode, and the security data received from wireless transmitter A is stored immediately after the house code and ID code match. It is stored in the temporary memory, and when the rcLRTEMPJ command is received from the main controller MC side, the data stored there is cleared so that the security data is stored in the condition memory and does not activate the alarm. . This temporary memory is used, for example, when setting a warning to go out, as described above.

In addition, bypass settings and 24-hour warning settings are also set, and these can be set for each zone on the main controller MC side.

In addition, in order to perform data transmission between the receiver B side and the main controller MC, a communicator as described above is provided to handshake data between the two. Monitoring data is sent to the MC in the form of status, and information on the warning zone where an abnormality has occurred is provided for each warning zone, and an ID code is displayed on the receiver B side. have different configurations. Therefore, among the information registered or stored in the system data registration means 22, regarding the wireless transmitter A, before OFFFF,
The tamper signal is sent to the main controller MC side along with information indicating the warning zone, and the monitoring data received and processed by the receiver B side is sent as a status depending on its type. From the controller MC to the receiver B side, the warning zone setting and
Bypass setting information and various commands are to be sent.

Note that in the figure, N indicates that no processing is performed.

〔Effect of the invention〕

According to the system of the present invention, since it is configured to be able to receive and process only security signals transmitted from wireless transmitters registered in the registration mode, it is possible to divide the system into multiple security zones and guard a predetermined security zone. There is also no risk of interference with security signals from wireless transmitters in other security zones.

Further, in the case where a periodic transmission abnormality determination means is provided, an abnormality in periodic transmission of a wireless transmitter having a quantitative transmission function can be detected, so that the reliability of the unidirectional transmission system can be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of the system of the present invention, FIG. 1a is a detailed explanatory diagram of the monitoring data display device and display control switch provided on the receiver side, and FIG. 2 is a basic circuit configuration diagram of the wireless transmitter. FIG. 3 is a diagram showing the signal format of the security signal, FIG. 3a. Figure 3b is a diagram showing the monitoring data included in the security signal and the assignment of function codes; Figure 4 is a diagram showing the basic system receiver (3 unit function pro/7 diagram; Figure 5 is the system data FIG. 5a and FIG. 5b are diagrams illustrating the data and flags registered in the addresses of the table, and FIG. 6 is a flowchart for executing the registration mode, and FIG. ; A is a knee 1 chart for executing scroll display in registration mode, Figure 8 is a basic flowchart of alert mode, and Figure 9 is a functional block of receiver 2 in another example of the system. figure,
Figure 10 is a diagram showing the relationship between the security information display means and the data storage memory, Figure 11 is a flowchart showing the procedure for reading data recorded in the data storage memory, and Figure 12 is the system Another example of this is a function button of a receiver equipped with a means for determining abnormality.
Figure 13 is a diagram explaining the principle of determining an abnormality in regular transmission when the timer means is shared, and Figure 14 is an operation when determining an abnormality in regular transmission using the principle shown in Figure 13. A flowchart incorporating this into alert mode,
Fig. 15 is a diagram explaining the principle of determining an abnormality in periodic transmission when a timer means is individually provided for each wireless transmitter, and Fig. 16 is a diagram explaining the principle of determining abnormality in periodic transmission using the principle shown in Fig. 15. 17 is a flowchart for executing the test mode, FIG. 18 is an external configuration diagram of the main controller, FIG. 19 is a circuit diagram of the switch group of the main controller, Figure 20 is a circuit configuration diagram of the display section of the main controller, Figure 21 is a functional block diagram showing the relationship between the receiver and the main controller, and Figure 22 is a diagram of the system executed when the system of the present invention is used in an actual monitoring system. FIG. 2 is an operation system diagram showing the operations performed. (Explanation of symbols) A...Wireless transmitter Sa, Sb...Sensor B...Wireless receiver 27...Registration mode setting switch 28...Warning mode setting switch 20...Front end/decoder Part 21...House code match determination means 22...System data registration means 23...ID code match determination means 24...Security information display means 24a...I
D code display 24b...Monitoring data display 25...Display control switch 30...Regular transmission abnormality determination means fl...Registration identification flag r3...Regular transmission confirmation flag MC...Main controller

Claims (4)

[Claims] (1) A plurality of wireless transmitters that output security data in the form of radio signals as security signals by adding house codes, security zone codes, unit codes, and function codes to monitoring data such as alarm signals emitted from sensors, etc.; In a wireless transmission system that combines a wireless receiver that receives security signals from these wireless transmitters, the wireless receiver receives security signals transmitted from any of the wireless transmitters included in the system to be monitored. There is a registration mode that is set to only process security signals from registered wireless transmitters, and a registration mode that processes only security signals from registered wireless transmitters to display security information and perform necessary processing such as activating an alarm. The device is configured to be able to selectively execute a warning mode and a warning mode that includes: a) receiving and decoding security signals from a wireless transmitter and transmitting security data with house codes, warning zone codes, unit codes, and function codes; The front end/decoder section to be taken out; b) Each mode setting switch that switches the receiver between registration mode and alert mode; and c) The house code of the security data taken out from the front end/decoder section is preset in the receiver. d) system data that allows registration of at least an ID code consisting of a security zone code and a unit code assigned to each wireless transmitter monitored by the system; and e) an ID code match determination unit that compares and references the ID code of the security data retrieved by the front end/decoder unit with the ID code already registered in the system data registration unit to determine whether the ID code matches. f) an ID code display having a display control switch and displaying the ID code of the data whose house code has been confirmed to match by the house code match determining means; and a monitor displaying the monitored data of the security data. g) When the registration mode is selected by the registration mode setting switch, each time a security signal is received from the wireless transmitter, the front end/decoder among the security data retrieved from the department, the ID codes of the security data whose house codes have been confirmed to match by the house code match determination means are sequentially registered in the system data registration means; h) by the alert mode setting switch; , when the alert mode is selected, each time a security signal is received from the wireless transmitter, the house code matching determining means and the ID code matching determining means select the house code from among the security data extracted from the front end/decoder section. Only the security data for which it has been confirmed that the code and ID code match will be displayed on the security information display means along with the ID code, and at the same time necessary processing such as activating the alarm activation means to set off the alarm will be performed. A wireless transmission system configured to (2) The above-mentioned wireless transmitter specifies the presence or absence of periodic transmission in the function code included in the security signal transmitted from the transmitter in the form of a radio wave signal, while the above-mentioned receiver specifies the presence or absence of periodic transmission from the wireless transmitter. Each time a transmitted security signal is received, in addition to the ID code of the security data extracted by the front end/decoder section, a function code specifying whether or not the periodic transmission is to be performed can be registered in the system data registration means, and The receiver is equipped with a periodic transmission abnormality determination means for determining an abnormality in periodic transmission from a wireless transmitter whose periodic transmission is specified by the function code, and when the receiver is set to registration mode, the system data registration means , the function code indicating the presence or absence of periodic transmission is registered together with the ID code, and when the alert mode is set, the system The above-mentioned periodic transmission abnormality determining means determines whether or not there is periodic transmission from a wireless transmitter whose function code indicating periodic transmission is registered in the data registration means, and when it is determined that there is an abnormality, the above-mentioned security information displaying means together with the ID code. The wireless transmission system according to claim 1, wherein the wireless transmission system is configured to display an abnormality in periodic transmission. (3) the system data registration means has an address corresponding to each wireless transmitter monitored by the system;
By setting a registration identification flag to identify whether or not the address is registered, the ID of the wireless transmitter can be set.
The patent is configured to register codes, and the ID code match determining means confirms the match of the ID codes by determining the set state of a registration identification flag at the corresponding address of the system data registering means. A wireless transmission system according to claim 1 or 2. (4) The monitoring data included in the above security data includes alarm signals emitted from sensors, etc., tamper signals emitted when the cover of the wireless transmitter is removed, etc., and the battery indicating that the wireless transmitter's battery is dead. The wireless transmission system according to any one of claims 1 to 3, which includes a disconnection signal.