JPS62182996A - Entry/departure monitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for monitoring entry into and exit from a room.

[Conventional technology]

In large-scale structures such as offices, hotels, halls, and apartment complexes, for the purpose of monitoring the presence of personnel in specific rooms, occurrence of fires, and illegal intrusion into specific rooms, and providing services and management according to the monitoring status. ,Recently, infrared sensors emit infrared rays from the human body, or transmit vibration waves such as ultrasonic waves or radio waves, and receive reflected waves from objects based on this, and detect the movement of objects. The Doppler effect caused by
[Problems to be solved by the invention] However, in the past, infrared sensors or Doppler sensors were used individually, so if only infrared sensors were used, indoor If there is a device or object that dissipates heat, there is a risk of false detection; if only a Doppler sensor is used, it will not be able to detect objects that move at low speeds, making it ineffective against illegal intruders who are aware of this. On the other hand, there are also problems such as the inability to automatically change the indoor air conditioning conditions or turn off the indoor lighting in response to the detection of an occupied room.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention is constructed by the following means.

In other words, there is an infrared sensor that detects infrared rays emitted from objects in a specific room in all directions, and an infrared sensor that transmits vibration waves to the entire area of the room, receives reflected waves from objects based on the vibration waves, and detects the movement of objects. A Doppler sensor for detecting the Doppler effect that occurs, and a means for determining whether a person has entered a specific room when the detection outputs of an infrared sensor and a Doppler sensor occur simultaneously, and determining whether a person has left the room based on the disappearance of the detection outputs of these sensors. It is equipped with the following.

[Effect]

Therefore, by combining the infrared sensor and the Doppler sensor, it is possible to reliably monitor the presence of people in a specific room.

[Example] Hereinafter, the present invention will be described in detail with reference to figures showing examples.

FIG. 1 is a block diagram of an electrical configuration.
In addition, for example, a Doppler sensor (hereinafter referred to as D
P8) 3 and a temperature sensor (hereinafter referred to as TS) 4 are provided, and their detection outputs are provided to a control unit (hereinafter referred to as CNT) 5. The CNT 5 also controls the air conditioning fan coil unit (hereinafter referred to as CNT) in the room 1. FCU) 6 and a switch board (hereinafter referred to as 5WB) 7 that turns on and off the lighting lights in the room 1.

In addition, the CNT 5 mainly includes a processor (hereinafter referred to as CPU) 51 such as a microprocessor, a fixed memory (hereinafter referred to as ROM) 52, a variable memory (hereinafter referred to as RAM) 53, an interface (hereinafter referred to as I/F) 54 to 57 around the periphery, connect these to the bus bar, and connect the I/F5B to the I/F5B.
Detection outputs of R, 82, DPS3 and TS4 are given, and FCU8 and 8W are output from I/F 57.
While a control signal to the B7 is sent, a display device (hereinafter referred to as DPE) having a display function and an operation function is transmitted via a communication I/F 54 having a transmission/reception function and a transmission line 8 such as an optical fiber. 9 is connected, I/F
55 is given the output of a locking key box (hereinafter referred to as KB) 11 provided near the door for entering the room 10.

At and \, the CPU 51 executes the program in the ROM 52, and the
3 and TS4 detection outputs, M via I/F 54
Each judgment is made according to the received signal from CT9, the output of KBll, etc., and one control calculation is performed, and according to these results, the I/F57 is
Control signals are sent via the Mc
This is to be transmitted as monitoring information to T9, and in each process of executing these operations, necessary data is accessed from RAM 53 while each operation is executed.

Figure 2 is a plan view of room 1 and its surroundings.
A PS3 is provided to transmit radio waves from the DP83 to the entire area of the room 1, and the IPS2 has a beam-shaped detection directivity of each sensor 5l-8n. They are arranged three-dimensionally in each direction of the room 1, and if there is an object emitting infrared rays in any part of the room 1, this infrared rays are detected in each direction.

Note that the 1R82 uses a differential type that generates a detection output according to changes in the amount of infrared rays that are incident on it. For example, the detection output gradually decreases.

In addition, TS4 is fixed to a wall surface, etc., and F'CU6 is fixed to a window 2.
Fixed to the inner floor surface of 2, 3, 9, F'CUs are equipped with a system whose cooling or heating capacity can be switched to three levels: H, M%L (high, medium, low). , CNT5 and 5WB7 are buried in the wall of the passage 23, and
A KBll is similarly buried near the exit door 24, and the door 24 can be electrically locked or unlocked by inserting a key, identification card, or the like.

In addition, lighting lights, night lights, etc. (not shown in the figure) are provided in the room 1 and the bathroom 21, and the ON/OFF of power to these lights is controlled by a relay in the 5WBT.

FIG. 3 is a comprehensive flowchart showing the monitoring and control status by the CPU 51 of the CNT5,
Based on each detection output of P83, "room attendance judgment" 001 and "sleeping judgment" 002 of the number of people in the room are performed.
At the same time as performing "lighting control" 011 for WB7,
Perform "room temperature control" 012 on CU6, then l
A "fire judgment" 021 is made based on the detection output of the R82, and an "intrusion judgment" 022 is made according to the signal from the MCT 9t or KBll and the judgment made in step 001, and then steps 001 and subsequent steps are repeated.

FIG. 4 is a flowchart showing the details of step 001. When a person enters the room through the door 24, this movement is followed by "DPS detection? J101 becomes Y (Yl)! +
, after the time ``t, delay'' 102 according to the timer configured in the CPU 51 has elapsed, the infrared rays radiated from the human body j5
If "IR8 detection? J111" is Y, in order to maintain certainty, "DPS detection? J112" is further checked, and "occupancy 7 lag set" 121 is performed according to "Y".

Further, if step 111 or 112 is N (NO), "occupancy flag reset" J122 is performed.

Note that when step 101 is N, step 1
Move to 11.

Therefore, if the detection outputs of IR82 and DP83 occur at the same time, it will be determined that someone has entered the room and the "occupancy flag" will be set.
If the respective detection outputs 83 disappear together, it is determined that a person has left the room, and the ``occupancy flag'' is reset, and the status of the presence of personnel in the room is indicated in accordance with this flag.

FIG. 5 is a flowchart showing the details of step 002. When the people in the room go to bed, their movements become slow.
DPs detected? In response to J201 becoming N, the CPU
After the time ``t, delay'' 202 by the timer in 51, check ``engine R8 detection? If J212 becomes Y,
"Bedtime Flag Sera) J 221"
Yl of step 201 or steps 211.212
If any of the above is N, "Write a bedtime flag"
Do 222.

Therefore, the detection output of DP83 disappears, and lR
When the detection output of 82 falls to a predetermined value, it is determined that it is time to go to bed, and this situation is indicated by "sleep 7 lag".

FIG. 6 is a flowchart showing the details of step 011.
set? Judge J301, and if this is Y, 5WB7
4302, and then, in accordance with steps 221 and 222, determines whether ``Bedtime 7 rug set?
5 through the timer "t4 delay" 312 in
Under the control of WB7, "Main lighting 0FFJ313 is performed,
Only the night light is on.

On the other hand, when step 311 is N, "main lighting ON" is set.
J314 lights up things other than night lights.

In addition, in the case of step 301 or N, after the same time as step 312, ``1. Delay'' 321, ``Lighting power 0FF
Perform J322.

FIG. 7 is a flowchart showing the details of step 012.
set? Determine J401, and if this is Y, FCU6
is controlled and performs "υ forced operation by FcU-H" 402, and based on the detection output of Ta4, "Room temperature/within a certain range? J40
3 is Y, the rFCU-M performs ON/OFF control 411 to control the room temperature to within a certain range based on the room temperature set value SPt according to the detection output of Ta2, and the flag set?
If 412 is Y, according to the data of 几AM53 r
Set pspt to the optimal value during sleeping using "change spt" 421, perform "J5ON/OFF control using FCU/change spt" 422, and then set "occupancy flag/sera" again?
423 check.

If step 423 is N, it is turned on by rFcU・L.
・OF control" 431 is carried out, and the timer in the CPU 52 checks the time "t6 elapsed? J432,
When this becomes Y, "stop rFcU" 441 is performed.

Therefore, while step 403 is N, step 40
2 is repeated, and if the room temperature rapidly reaches within a certain range and step 412 is N, step 41 is repeated.
1 is repeated, and while steps 412 and 423 are Y, steps 421 and 422 are similarly repeated, and a night set back is performed.

Furthermore, if step 423 becomes N due to leaving the room or taking a bath, step 431 will be executed until t6 has elapsed, and the FCU 6 will stop after t6 has elapsed, so the room temperature will change rapidly in a room where the user is absent for a short time. do not.

FIG. 8 is a flowchart showing details of step 021. υ, rIR8 detected? J501 is Y, this is "
Multiple simultaneous detection? When it comes to Y of J 502, these “
Is each detection output above a certain value? J503 is determined, and if this is also Y, the I/F 54 immediately sends a ``fire alarm transmission'' 512 to the DPE 9 via a time ``t, delay'' 511 set by a timer in the CPU 51.

Therefore, detection outputs are generated simultaneously in multiple directions by any one of 8n to the sensor Sl of lR82, and
If each of these detection outputs exceeds a certain value, it is determined that a fire has occurred, and this information is sent to the DPE9.
The PE 9 will notify the occurrence of a fire by displaying this information and sending out an alarm sound.

FIG. 9 is a flowchart showing the details of step 022. When you lock the door using KBll when you go out, a "going out slander" message will be sent, and the presence or absence of this data is checked by checking the RAM 53. "Outside signal received?" 4601 is judged, and based on this Y, in response to steps 121 and 122, "Presence flag e set? Check J602, and if this is also Y, it is determined that there is an illegal intruder in the room. and immediately I/I” 54
``Send an intrusion alarm'' 611 to the DPB 9 via.

・Therefore, if it is determined in step 001 that it is necessary to enter the room after receiving the out-of-home signal,
It is determined that there is trespassing, and the DPE 9 notifies the user of this fact in the same manner as described above.

As described above, the combination of IR82 and DP83 not only determines whether the room is occupied, but also determines whether the people in the room are sleeping, and various controls are optimally performed according to these monitoring results. Comfortable living conditions and energy savings in the room 1 can be achieved.

In addition, the DPE9 displays the indoor monitoring status, and responds quickly to fire outbreaks and illegal intrusion notifications. By providing this, it is possible to save labor in managing the number of people and to prevent the spread of disasters, etc., with an economical configuration that does not require a fire sensor.

However, instead of using a differential type as lR82, we use one that continuously generates a detection output, and change the detection output by CN.
The determination may be made at T5, and in this case, the room temperature is determined from the detection output from a metal plate or the like whose amount of infrared radiation changes depending on the room temperature, and the same effect can be obtained even if Ta2 is omitted.

In addition to FCU6 and 5WB7, you can select the device to be controlled depending on the situation, and as CNT5,
In particular, various modifications are possible, such as not using the CPU 51 and using a dedicated control judgment circuit configured by various logic circuits.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, entry into and exit from a room can be reliably monitored, and a remarkable effect can be obtained in monitoring the presence of people in various rooms.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and Fig. 1 is a block diagram of the electrical configuration, Fig. 2 is a plan view of the room and its surroundings, Fig. 3 is a comprehensive flowchart of the monitoring and control situation, and Figs. FIG. 9 is a flowchart showing details of each step in FIG. 3. 1...Indoor, 2..., @IR8 (infrared sensor),
3...DPS (Doppler sensor), 4...TS
(temperature sensor), 5...CN'l' (control part 1),
6...FCU (fan coil unit), 7...
・8WB (switch ff1), 9...DPE (display device i), 11...KB (key box), 24
...Door, 51. Tatami...CPU (processor), 5
2...ROM (fixed memory), 53...RAM
(Variable memory) 54 to 57... I/F (interface). Patent Applicant Yamatake Honeywell Co., Ltd. Agent Kazu Yamakawa 1M (G & 2 people) Mo 2nd District No. 3 Guan No. 4 No. 4 No. 5 No. 6 Guangzhou Enguko Procedure Amendment (尤人゛) 1. Display of the case 1985 Patent Application No. 240g3 No. 3, person making the amendment Relationship to the case Patent applicant name (name)
(G66) Yamatake Honeywell Co., Ltd.'5pW date October 2, 1986? -Day 1・1 L1 to the prisoner pot
CL＾雛, τWamo 11, Indication of the case 1986 Patent Application No. 24083 2, Name of the invention Room entry/exit monitoring device 3, Person making the amendment Relationship with the case Patent Applicant name (name) 666) Yamatake Honeywell Co., Ltd. 5, subject to correction 117? j rep'1llr l JQ 3 'IJ
CL LJ 1J (Vjllllll”” r --(
Do lJu△. ``The installation location of FCU6 is selected depending on the situation5, and the cooling and heating capacities of FCTL are H, M,
It is not limited to the three stages of L, but also those capable of more multi-stage or continuous control may be selected according to the conditions. (2) Add the following to page 13 of the same book, between lines 13 and 14. ``For example, the ``delay'' in steps 102 and 131 is
It is executed by a timer operation by periodic interrupt processing of the CPU 51, and the CPU does not run until the timer times up.
51 returns to the previous step and performs a repetitive operation, and in the case of step 102, rDPS detection? J101
A check is made to see that Y continues for tl, and similar operations are performed in each of the other "delay" steps. "that's all

Claims (1)

[Claims] an infrared sensor that detects infrared rays emitted from an object in a specific room in all directions, and an infrared sensor that transmits vibration waves to the entire area of the specific room, receives reflected waves from the object based on the vibration waves, and detects the movement of the object. A Doppler sensor detects the generated Doppler effect, and when each detection output of the infrared sensor and Doppler sensor occurs almost simultaneously, it is determined that a person has entered the specific room, and it is determined that a person has left the room based on the disappearance of the detection output of each of these sensors. An entry/exit monitoring device characterized by comprising: means.