JPS61267897A - Abnormality generation detector for specified space - 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 Technical Field The present invention relates to a specific space such as an elevator,
The present invention relates to a device for detecting the occurrence of an abnormality.

BACKGROUND TECHNOLOGY Traditionally, elevators have been provided with emergency buttons.
When an abnormality occurs in the elevator, a person riding the elevator can notify the outside of the abnormality by repeatedly pressing an emergency button.

Problems to be Solved by the Invention In such prior art, when an abnormality occurs in an elevator, a person riding in the elevator may not be able to operate the emergency button. In such a case, even though an abnormal condition has occurred, it is not possible to notify the outside of the abnormal condition.

An object of the present invention is to provide an abnormality occurrence detection device for a specific space that can reliably detect the occurrence of an abnormality within a specific space.

Means for Solving the Problems The present invention provides at least one of a means for detecting a predetermined movement in a specific space or a means for detecting a predetermined sound, and detects a predetermined sound from the detection means. This is a device for detecting the occurrence of an abnormality in a specific space, characterized in that it is provided with a notification means for notifying the occurrence of an abnormality by outputting an output.

According to the present invention, at least one of a predetermined movement in a specific space or a predetermined sound is detected,
This notifies you of the occurrence of an abnormality, so there is no need to operate the emergency button, etc. mentioned in connection with the prior art described above (therefore, it is possible to reliably detect and notify the occurrence of an abnormality in a specific space). becomes.

Embodiment FIG. 1 is a block diagram of an embodiment of the present invention, in which the electrical configuration shown in FIG. 1 is implemented in conjunction with the elevator 1 shown in FIGS. 2 and MS3. FIG. 2 is a longitudinal sectional view of the elevator 1, and FIG. 3 is a plan view of the elevator. The elevator car 2 is raised and lowered in the vertical direction of FIG. 2 (perpendicular to the paper surface of FIG. 3). In the space 3 in this car 2, there is a space 911 of car 2 where a person gets on.
An emergency button 4 is attached to 51 facing the space 3.

A television camera 5 is provided on the ceiling of the car 2 to take an image of the inside of the space 3. A microphone 6 is provided to detect sounds within the space 3. A detection element to detect the movement of a person who has entered space 3? , 8.9 are provided. The detection elements 7.8 each detect the movement of a person in the X and Y planes parallel to the horizontal plane. The remaining detection elements 9 detect the vertical movement of the person in the Z direction. A speaker 10 for generating sound is provided in the space 3 of the car 2.

FIG. 4 is a block diagram showing a schematic configuration of the present invention. In the control room 11 of the building equipped with the elevator 1,
A monitor video display device 12 realized by a cathode ray tube or the like, a video recording device 13 such as a video recorder, a speaker 14, and a microphone 15 are connected. Components 4 to 10 provided in the car 2 and components 12 to 15 provided in the management room 11 are connected to a processing device 16.

Referring again to FIG. 1, the processing circuit 16 shown in FIG.
The gaseous composition of When the emergency button 4 is pressed manually, the output from the emergency button 4 is O.
Given to R date 17.

Detection element? , 8.9 are applied to one input of the AND date 19. The output from the voice detection means 20 including the microphone 6 is also input to the AND gate 19.

The outputs from the motion detection means 18 and the voice detector p120 are input to another OR date 21.

The output from OR day) 17.21 is input to OR gate 22. Based on the output from the OR date 22, the television camera 5 is activated to image the situation inside the car 2 of the elevator 1, and the video recording device 1 in the control room 11 is activated.
3 and displayed on the video display device 12.

Furthermore, a television camera 62 installed at the entrance of the building in which the elevator 1 is installed is activated, and the image is recorded by the video recording device 13. The output from OR date 17 is also
The processing circuit 16 is used for the threatening broadcast 61, and based on the output from the OR date 17, the processing circuit 16 automatically broadcasts the broadcast by the manager in the management room 11 from the microphone 15, and automatically sends predetermined content to the speaker 10. This makes it possible to make threatening broadcasts within your home. This threatening broadcast
For example, the voice content may be "Your actions are being monitored" or "What are you doing?". Further, the output from the OR date 22 activates the television camera 5 attached to the car 2, so that the situation can be viewed in the control room 11 on the video display device 12. The sound inside the car 2 is converted into sound by the speaker 14 using the microphone 6. O
When the output of the R date 21 is obtained, the output of the OR date 22 is obtained, and an alarm is issued to prompt the television camera 5 to watch the video display device 12. Although the situation inside the car 2 can be viewed at all times in the control room 11, it is only necessary to keep an eye on it when an alarm occurs.

OR day) 17 by operating emergency button 4
．． An output is derived from 22, which starts the video recording device 13, records the video, and also broadcasts the threatening broadcast 6.
1 is performed. Further, when simultaneous outputs from the motion detection means 18 and the sound detection means 20 are obtained, the AN
Output is derived from D date 19 through OR day) 17.22, and as a result, video recording is performed in the same manner as described above, and threatening broadcast 61 is performed.

When only one of the outputs from the motion detection means 18 and the sound detection means 20 is obtained, AND date 1
No output from OR date 9 is derived, but an output from OR date 21 is obtained, which in turn derives an output from OR date 22 to issue an alarm to the control room. In the control room 11, the situation inside the car 2 is observed using the video display device 12, and if there is an abnormality, the manager in the control room 11 or automatically sends an alarm via the microphone 15 (see Fig. 4). , the speaker 10 in the car 2 can make threatening broadcasts.

tjSs is a block diagram showing a specific configuration of the motion detection means 18. Outputs from the X-direction detection element 7, the Y-direction detection element 8, and the Z-direction detection probe 9 are input to the arithmetic circuit 24. Detection element? , 8.9, let the velocity of movement in the X, Y and Z directions be detected by
Assuming that the same reference symbols X 1 , Y 2 , and Z are used, the arithmetic circuit 24 calculates the value A expressed by the first equation.

A=to 8+y'+zgo...(
1) The arithmetic circuit 24 sends an output representing this value A to line 2.
5.

The output from the detection element 9 that detects movement in the Z direction is also
It is applied to another arithmetic circuit 26.

The arithmetic circuit 26 responds to the output from the detection element 9 and calculates the value B expressed by the second equation.

B=Z-T...(2)
The value B calculated by the arithmetic circuit 26 is the product of the speed in the Z direction and the duration T of movement in the same direction. From this, it is determined that there has been a phenomenon in which a person riding in the car 2 has fallen or collapsed, and the output thereof is led out to the line 27.

The output from the arithmetic circuit 24 is given to the comparator circuit 28 from the line 25 as described above, and the value A1 set in the setting circuit 29 and the value A calculated in the arithmetic circuit 24 are compared. When this value A is greater than or equal to the set value A1, a high level signal that subtracts it by 1 is derived from line 30 and applied to OR date 31. In this way, it is detected that the car 2 moves at a high speed in at least one of the X direction, the Y direction, and the VZ direction, and that an abnormality has occurred.

The value B derived from the arithmetic circuit 26 on the line 27 is provided to the comparison circuit 31. In the comparison circuit 31, the setting circuit 3
The value B1 set in step 2 and the value B from the arithmetic circuit 26 are compared. When it is determined that the value B calculated by the arithmetic circuit 26 is equal to or higher than the set value 81, a phenomenon in which a person falls or collapses in the car 2 is detected,
Its high level output is taken out on line 33. The set value B1 is set to a value that allows such an abnormal state to be detected even if the height of the person riding in the car 2 is, for example, about 1-. The output from line 33 is provided to OR date 31.

A signal representing the value A derived from the arithmetic circuit 24 on line 25 is applied to a counter 34 . The counter 34 counts the number of pulsations of value A within a predetermined period of time, for example, less than 10 seconds, and thereby calculates the movement that occurs when people in the car 2 are scrambling or fighting. can be detected. The output from the counter 34 is
It is applied to a comparison circuit 36 via line 35. The comparison circuit 36 determines whether the count value of the counter 34 exceeds the value N set in the setting circuit 37. It is determined whether the count value C is greater than or equal to the value N set in the setting circuit 37. When the count value C is greater than or equal to the set value N, a high level output representing this is provided from the line 38 to the OR date 31. The output from OR date 31 is provided to AND date 19 and OR date 21, described above in connection with FIG.

To summarize, in the motion detection means 18, from the line 30,
A signal is derived from line 33 indicating that there has been an extremely violent movement of high velocity in at least one of the X, Y and Z directions in car 2;
A signal indicating a phenomenon such as the person inside falling down or collapsing is obtained, and a signal indicating that the pulsation of the movement continues even if the speed of the movement is small is obtained from the fin 38. is derived.

Detection element? , 8.9 has a configuration in which ultrasonic waves, infrared rays, etc. are radiated into the car 2, and a shift in the frequency of the reflected signal corresponding to the speed of movement of the person inside the car 2 is detected based on the Doppler effect. or may have other configurations.

FIG. 6 is a block diagram showing a specific configuration of the voice detection means 20. When something goes wrong inside the cage, a few single tones, so to speak, are often emitted.
The exclamation sounds include, for example, "Kya", "Oo", and "Kora", and the total number of these exclamation sounds is, for example, about 10. Speech recognition circuits 41, 42, 43, individually for recognizing each exclamatory sound;
44. ...etc. are provided. Each voice recognition circuit 41,
42, 43° 44, . . . , when exclamatory sounds are detected respectively, their outputs are provided to the AND date 19 and OR date 21 described above in connection with FIG. 1 via the OR date 45. . Audio 2! The identification circuit 41 is a circuit for identifying an exclamation sound such as "Kya", and the audio signal from the microphone 6 is given to the sound pressure level analysis circuit 46. The sound pressure level analysis circuit 46 samples a signal representing the sound level at equal time intervals after the sound is generated, and outputs it to a line 47.

The sound pressure level of the exclamation voice is shown in reference number 1 in Figure 7. 2
,! 3, the time course of the sound pressure level is different from each other. Time tl ti2 + at equal time intervals derived from the sound pressure level analysis circuit 46
....

A signal representing the sound pressure level for each til... is led out to the line 47 as described above and applied to the differentiating circuit 48. In this differentiation circuit 48, each time t1.12,
. . , ti, . . . The time change rate of the sound pressure level is detected. The output from the differentiating circuit 48 is sent to the comparing circuit 49.
are given at each time tl, t2,..., [i,...
It is determined whether the time rate of change of the sound pressure level in ... is greater than or equal to a predetermined value. In this way, when the time rate of change of the sound pressure level at each time is a predetermined value, it is identified that the exclamation is "kya".

The output from the microphone 6 is also sent to a frequency analysis circuit 50.
given to. In the frequency analysis circuit 5o, time ti,
t2. Analyze the frequencies at ..., ti, ...,
The frequency distribution pattern of the audio at each of these times is
It is applied to the pattern identification circuits 52, 53, and 54.

The pattern identification circuits 52, 53, and 54 each time ti+ and 2. ..., ti, ..., and these pattern identification circuits 52, 53, 54 determine whether the frequency distribution at each time has a predetermined frequency emission vector. If so, the voice identification circuits 55, 56, and 57 each derive high-level signals and provide them to the AND date 58.

The output of the comparison circuit 49 and the AND date 58 is AN
The output from AND date 59 is applied to OR date 45. At this point, the voice recognition circuit 41 determines whether the exclamation voice "Kya J" from the microphone 6 follows a predetermined time course of sound pressure level and whether the frequency distribution is a predetermined distribution. When the change in sound pressure level and the frequency distribution correspond to a predetermined exclamation sound "Kya", AND
A high level signal is derived from the date 59, and it is determined that the exclamation "Kya" was generated within the voice 2.

Residual speech recognition circuits 42, 43, 44. ... has a function of identifying each other exclamation voice using a similar structure. The output from OR date 45 is provided to AND date 19 and OR date 21, described above in connection with FIG.

The present invention is not only implemented in connection with the elevator 2 of the elevator 1, but also widely implemented to detect the occurrence of abnormalities in other specific spaces. According to the invention,
Only one of the motion detection means 18 and the voice detection means 20 may be provided.

Effects As described above, according to the present invention, when a predetermined movement is detected in a specific space or the occurrence of a predetermined sound is detected, it is reported that an abnormality has occurred, which is different from conventional methods. This makes it possible to reliably detect the occurrence of an abnormality without having to operate an emergency button or the like provided in the system.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of car 2 of elevator 1, FIG. 3 is a plan view of car 2, and FIG. 4 is an electrical configuration related to car 2. 5 is a block diagram showing the specific configuration of the motion detection means 18, FIG. 6 is a block diagram showing the specific configuration of the voice detection means 20, and FIG. 7 is a block diagram showing the specific configuration of the motion detection means 20. FIG. 3 is a diagram showing the progression of levels over time. 1... Elevator, 2... Car, 3... Space, 4
...Emergency button, 5...TV camera, 6,15.
...Microphone? , 8.9... detection element, 11
. . . Management room, 12 . @

Claims (1)

[Claims] At least one of a means for detecting a predetermined movement in a specific space or a means for detecting a predetermined sound is provided, and a notification means is provided for notifying the occurrence of an abnormality by a detection output from the detection means. Features: An abnormality detection device in a specific space.