JPH0227500A - Guard information transmitting device - Google Patents

Abstract

PURPOSE:To grasp the accumulated residual of a built-in battery by transmitting power failure generation stopping period data and power failure restoration stopping period data to a monitor device after the fault restoration of the monitor device when the power failure is restored while the fault of the monitor device occurs. CONSTITUTION:A central processing part 30, which receives the transmission response (ACK) signal of the fault restoration from the monitor device, returns a power failure restoration signal TO to high, and simultaneously sends the ACK signal to a reset the inverse of R of flip flops F/F 61 and F/F 62 and NAND circuits 63 and 64, resets the inverse of R of counters (CTR) 65 and 66, and stops counting. That is, the counting after the power failure generation and restoration is completed, and a CS of buffers (BF) 67 and 68 of 3st simultaneously become active. In such a way, when the monitor device is restored, time data until the restoration of the monitor device are added in addition to the information of power failure generation and restoration as an alarm, and they are transmitted to the monitor device. Thus, the supply of the external battery can be judged.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a security information transmitting device, and in particular, it transmits abnormal situations (intrusion, fire, gas leak, etc.) to a monitoring center receiving device via a communication line. The present invention relates to a security information transmitting device that automatically reports.

[Conventional technology]

Conventionally, this type of security information transmission device counts the duration of the power outage until the monitoring device is restored after a power outage occurs when the monitoring device goes down. Recovery information is not counted, and time count data is accumulated in the buffer of the transmitting device. Therefore, when the monitoring device is restored, the power outage occurrence information is sent to the monitoring device with the addition of count data of the time until the monitoring device is restored, but the power outage recovery information is configured to send only that information.

[Problem to be solved by the invention]

In the conventional security information transmission device described above, if a power outage occurs and is restored while the monitoring device is down, the power outage occurrence time when the monitoring device is restored is counted as the time from the power outage to the restoration of the monitoring device. You can figure it out by counting backwards, but there is no function to count the power outage recovery time, so it would be fine if the status of no power outage continues after the monitoring device is restored from failure, but it is possible that the power outage occurs again immediately after the monitoring device is restored. If a power failure occurs, it is not known how many minutes the power outage occurred while the monitoring device was down, so it is not possible to know the remaining amount of power in the transmitter's built-in battery.
If a power outage frequently occurs on the transmitting device side, there is a drawback that it is difficult to determine by when the transmitting device must be supplied with an external battery.

[Means to solve the problem]

A security information transmitting device of the present invention is a security information transmitting device that includes a built-in battery for use in the event of a power outage and automatically reports abnormal situation information to a monitoring device via a communication line. A clock unit is provided that is operated by the battery when a power outage occurs, and when the power outage is restored after the failure of the monitoring device is restored, the clock unit operates from the time of occurrence of the power outage to the reception of the transmission response signal from the monitoring device. The clock section transmits information including power outage period data obtained by measuring the power outage period to the monitoring device, and when the power outage is restored during a failure of the monitoring device, the clock section calculates the data from the monitoring device from the time of occurrence of the power outage. Power outage occurrence suspension period data and power outage recovery suspension period that measured the power outage occurrence suspension period until reception of the transmission response signal after failure recovery and the power outage recovery suspension period from the time of occurrence of the power outage to reception of the transmission response signal after the failure recovery and transmitting means for transmitting information including data to the monitoring device.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the security information transmitting device of the present invention, and FIGS. 2(a) and (b) show information between the monitoring device and the monitoring device during normal operation and power outage of this embodiment, respectively. FIG. 3 is a diagram showing an example of a transmission/reception sequence, and FIG. 3 shows the time between output signals of each circuit of the clock section in this embodiment shown in FIG. 1 when power is restored during a failure in the monitoring device. FIG. 4 is a timing chart showing an example of the relationship.

In FIG. 1, the security information transmitting device of this embodiment includes a key switch 50 that sets the start and release of security, and a sensor 4 that detects various abnormal situations (intrusion, fire, gas leak, etc.).
0, a power outage detection sensor 41 that detects a power outage, a central processing unit 30 that creates and processes security information, and sends the security information to the communication line 10 and receives a transmission response signal from a monitoring device (not shown) at the center. It has a transmitting/receiving section 20 that receives data, and a clock section 60 that measures the duration of a power outage during a power outage. F/F to set at recovery
62 and a transmission response signal from the central processing unit 20 (hereinafter referred to as A
A counter (hereinafter referred to as CTR) 65 that counts the power outage occurrence stop period until the arrival of the CK signal (hereinafter referred to as CK signal), a CTR 66 that counts the power outage recovery stop period, and a buffer (hereinafter referred to as BF) 6 that accumulates the count data of CTR 65.
7 and BF68 that accumulates the count data of CTR66.
, an oscillation circuit (hereinafter referred to as OSC) 69 that generates a clock signal, and a NAN that sends a reset signal to r of the CTR 65 using the Q terminal output signal of the F/F 61 and the ACK signal.
It comprises a D circuit (hereinafter referred to as NAND) 63 and a NAND 64 which sends a reset signal to r of the CTR 66 using the Q terminal output signal of the F/F 62 and the ACK signal.

In FIG. 2(a), the transmitting device of this embodiment first transmits a transmission request signal (hereinafter referred to as ENQ) to the monitoring device when an abnormal situation occurs during normal times (when there is no power outage), and Upon receiving the ACK signal, data on the abnormal situation is transmitted to the monitoring device.

Next, regarding the operation of this embodiment, Fig. 1, Fig. 2(b),
This will be explained using FIG.

Assume that during security, the monitoring device (not shown) is down and the transmitting device of this embodiment is in a power outage state. As shown in FIG. 2(b), the transmitting device sends E to the monitoring device.
At the same time as sending out the NQ signal, the central processing section 30 starts the clock section 6.
Power failure occurrence signal T- (active high) to F/F61 of 0
Send out. At this time, the T- signal is also sent to the F/F 62, but it does not operate because C of the F/F 62 is active low. Then, as shown in FIG. 3, the output Q of the F/F 61 becomes high, the reset r (active low) of the CTR 65 becomes high via the NAND 63, and counting starts. In other words, it starts counting the time since the power outage occurred.

Suppose that even though the monitoring device is down, the power outage is restored after a while. Similar to the above-mentioned power outage occurrence, the central processing unit 30 sends a power outage recovery signal T to the F/F 62 of the clock unit 60.
o (active low). At this time, F/F61
The To flaw signal is also sent to F/F 61, but it does not work because C of F/F 61 is active high. Then, as shown in Fig. 3, the output Q of F/F 62 becomes high, and in the same way, the time from power recovery is determined. CTR66 starts counting.

Therefore, upon receiving the ACK signal for failure recovery from the monitoring device, the central processing unit 30 returns the power outage occurrence signal T- to low and the power outage recovery signal To to high.
1 and F/F62 reset r and NAND63,6
4, the r of CTR65 and 66 is reset and the count is stopped. In other words, the count after the power outage occurs and is restored is terminated. At that time, 3st BF67.68
C8 also becomes active at the same time, so the counted data at that time is 1. Data 2 is 3stBF67.68
The data then passes through the central processing unit 30 and is transmitted from the transmitting/receiving unit 20 to the monitoring device via the communication line 20.

In other words, when the monitoring device is restored, in addition to power outage occurrence and recovery information, time data until the monitoring device is restored is added as an alarm and transmitted from the transmitting device of this embodiment to the monitoring device.

〔Effect of the invention〕

As explained above, even if a power outage occurs while the monitoring device is in failure, the power outage period data is stored when the power outage is restored after the monitoring device has recovered from the failure; By transmitting power outage occurrence suspension period data and power outage recovery suspension period data to the monitoring device after the monitoring device has recovered from a fault, the monitoring device can know how many minutes the transmitting device has been out of power, and also From the data, it is possible to know the remaining amount of power in the transmitter's built-in battery, so even if a power outage continues to occur after the monitoring device is restored, the maintenance person on the monitoring device side can know how long it will take to replenish the external battery. It is possible to determine whether or not it is necessary to go to the site (transmitting device) immediately, which has the effect of improving the quality of security monitoring services.

Figure 3 shows an example of the sequence of transmitting and receiving information with the monitoring device during normal operation and during a power outage in this embodiment, respectively. FIG. 2 is a timing chart showing an example of the time relationship between output signals of each circuit of the clock section in the embodiment shown in FIG. 1;

10... Communication line, 20... Transmitting/receiving unit, 30...
Central processing unit, 40... Sensor, 41... Power outage detection sensor, 50... Key switch, 60... Clock unit, 6
1.62...Flip prop (F/F), 63.6
4...NAND circuit (NAND), 65.66...
Counter (CTR), 67.68...Buffer (BF
), 69...Oscillation circuit (O3C).

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the security information transmitting device of the present invention, and FIGS. 2(a) and (b) are summary table 1.

Claims (1)

[Claims] In a security information transmitting device that includes a built-in battery for use in the event of a power outage and automatically reports abnormal situation information to a monitoring device via a communication line, the clock is operated by the battery when a power outage occurs when the monitoring device fails. and a power outage period data obtained by measuring the power outage period from the time of occurrence of the power outage to the reception of the transmission response signal from the monitoring device, when the power outage is restored after the fault recovery of the monitoring device. If the power outage is restored during a failure of the monitoring device, the clock unit transmits the information including the information to the monitoring device, and when the power outage is restored during a failure of the monitoring device, the clock section measures the time from the time of occurrence of the power outage to the reception of a transmission response signal from the monitoring device after the failure is restored. Information including power outage occurrence/stop period data and power outage recovery stop period data, which are measured as a power outage stop period and a power outage recovery stop period from the time of occurrence of the power outage to reception of the transmission response signal after recovery from the failure, is sent to the monitoring device. A security information transmitting device characterized by having a transmitting means for transmitting security information.