JP6769821B2 - Work site monitoring device - Google Patents

Description

The present invention relates to a work site monitoring device that monitors a work environment such as temperature, humidity, and wind speed at a construction site such as a construction site.

At construction sites such as construction sites, construction materials, civil engineering-related materials, and construction equipment are placed, but in recent years it has frequently been the case that materials are stolen because they are unmanned at night. are doing. Therefore, a surveillance device has been proposed in which a surveillance camera or sensor is installed to notify when an abnormality is detected and to save the captured image. For example, in Patent Document 1, a pole equipped with a surveillance camera, a speaker, an indicator light, an infrared sensor, a control device for executing a predetermined alarm operation when an abnormality is detected, and the like are installed at appropriate intervals at a site to be monitored, thereby suspiciously. Person detection and notification were carried out.

On the other hand, since most of these construction sites are outdoors, it is necessary to take measures against heat stroke in the summer so that workers can work safely, and it is necessary to be careful about strong winds throughout the year. .. Therefore, as a device for monitoring the work environment at an outdoor construction site, for example, there is a heat stroke prediction device described in Patent Document 2 for predicting heat stroke. In this method, an alarm signal is transmitted to the outside when both the temperature and humidity values exceed a predetermined value set according to the work environment based on the information of the temperature / humidity sensor.

Japanese Unexamined Patent Publication No. 2014-229258 JP-A-2015-195451

In the monitoring device for measures against suspicious persons in Patent Document 1, since a sensor, an indicator light, a speaker, etc. are individually attached to the pole to form one monitoring device, the work of assembling to the pole is troublesome. .. In addition, the monitoring device and the heat stroke prediction device described above will move as the work site progresses, and this moving work is also troublesome because many devices are moved.
In addition, since the speaker and the indicator light for warning the occurrence of an abnormality were individually provided for each sensor, for example, the monitoring device and the heat stroke prediction device were installed independently.

Therefore, in view of such a problem, the present invention can monitor the environment of the work site in addition to monitoring the suspicious person by simple installation work, and further, the work site has a common alarm unit to simplify the configuration. It is intended to provide a monitoring device.

In order to solve the above problems, the work site monitoring device according to the invention of claim 1 includes a motion sensor, a temperature / humidity sensor, a notification means for notifying an alarm, a motion of the motion sensor, and a temperature / humidity sensor. It has an abnormality determination means that determines the occurrence of an abnormality based on the measured value and controls the notification operation of the notification means, and has a motion sensor, a temperature / humidity sensor, and a report as the notification means in a housing that houses the abnormality determination means. The sound part and the mounting bracket for fixing the housing to the rod-shaped mounting target are assembled, and the abnormality judgment means receives the detection operation of the motion sensor and emits a threatening sound from the sound part and warms up. When the measured values of the temperature and humidity of the humidity sensor satisfy a specific preset relationship, a heat stroke alarm is issued, and the sounding unit is operated to issue a predetermined heat stroke alarm.
According to this configuration, it is possible to carry out a simple installation work of attaching one housing that shares suspicious person monitoring, heat stroke prevention monitoring, and alarm issuance to a pole or the like, and to move the monitoring location to one housing. It can be carried out with an easy task of moving the body. Further, the notification for the abnormality detection of the two types of sensors can be performed by one common notification means, and the cost can be reduced.

According to the invention of claim 2, in the configuration according to claim 1, the abnormality determination means has a wireless communication unit for wirelessly notifying to the outside, and the wireless communication unit includes sensing operation information of a motion sensor and heat stroke. It is characterized by wirelessly transmitting alarm issuance information to an external management server via a communication network.
According to this configuration, by notifying the monitoring status to the outside, the administrator can promptly respond to the intrusion of a suspicious person or the change of the site environment. In addition, no separate signal line is required for wireless transmission.

According to the invention of claim 3, in the configuration according to claim 1 or 2, a sensor in which a wind speed sensor is attached to a rod-shaped mounting target on which a housing is installed and wind speed data output by the wind speed sensor is input to the housing. A signal input unit is provided, and the abnormality determination means issues a strong wind warning when the wind speed shows a value equal to or higher than a preset wind speed from the wind speed information of the wind speed sensor, and activates the alarm sound unit to issue a predetermined strong wind warning. It is characterized by.
According to this configuration, notification for abnormality detection of three types of sensors can be performed by one notification means, and cost can be further reduced.

The work site monitoring device according to the invention of claim 4 determines and notifies the occurrence of an abnormality based on the human sensor, the wind speed sensor, the notification means for performing acoustic notification, the sensing operation of the human sensor, and the measured value of the wind speed sensor. A sensor signal input that has an abnormality determination means that controls the notification operation of the means, and inputs the human sensor, the sound unit as the notification means, and the wind speed data output by the wind speed sensor in the housing that houses the abnormality determination means. The part and the mounting bracket for fixing the housing to the rod-shaped mounting target are assembled, and the abnormality judgment means receives the sensing operation of the human sensor and emits a threatening sound from the sound sensor, and also the wind speed sensor. When the measured value of the above indicates a value equal to or higher than a preset wind speed, a strong wind alarm is issued to activate the alarm unit to issue a predetermined strong wind alarm.
According to this configuration, it is possible to carry out the simple installation work of attaching one housing that shares the same monitoring of the suspicious person, the monitoring of the wind speed and the alarm issuance to the pole, and the movement of the monitoring place can be easily carried out. Further, the notification for the abnormality detection of the two types of sensors can be performed by one common notification means, and the cost can be reduced.

The invention of claim 5 has the configuration according to claim 4, wherein the abnormality determination means has a wireless communication unit for wirelessly notifying to the outside, and the wireless communication unit includes detection operation information of a motion sensor and a strong wind warning. It is characterized by wirelessly transmitting the alarm information of the above to an external management server via a communication network.
According to this configuration, by notifying the monitoring status to the outside, the administrator can promptly respond to the intrusion of a suspicious person or the change of the site environment. In addition, no separate signal line is required for wireless transmission.

According to the invention of claim 6, in the configuration according to any one of claims 1 to 5, the operating time zone is set for each sensor, and the abnormality determining means does not accept the sensor signal except for the set time zone. It is characterized by.
According to this configuration, for example, by turning off the motion sensor during working hours, it is possible to prevent the motion sensor from operating by the operator, and it is possible to reliably prevent the motion sensor from operating during unattended hours such as nighttime and holidays. Suspicious person detection can be performed. Further, by turning off the sensor that monitors the working environment during the time when there is no worker, it is not necessary to issue an alarm to the worker, so that the alarming operation does not become noise.

According to the invention of claim 7, in the configuration according to any one of claims 1 to 6, the notification means is a light emission notification unit attached to a housing to notify light emission of an abnormality in addition to the sound notification unit for acoustic notification. The abnormality determining means is characterized in that the light emitting notification unit emits light in accordance with the acoustic notification.
According to this configuration, since the notification is also made by light emission in addition to the acoustic notification, the operator can easily recognize the alarm and threatens the suspicious person.

According to the present invention, monitoring of a suspicious person, monitoring for heat stroke prevention, and alarm issuance can be performed by a simple installation work of attaching one housing to a pole, and the monitoring location can be easily moved. it can. Further, the notification for the abnormality detection of the two types of sensors can be performed by one notification means, and the cost can be reduced.

It is a front view which shows an example of the work site monitoring apparatus which concerns on this invention. It is a side view of the work site monitoring device of FIG. It is a top view of the work site monitoring device of FIG. It is a side view of the wind speed wind direction sensor. It is a schematic block diagram including a work site monitoring device and its communication destination. It is a functional block diagram of a monitoring control unit.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. 1 to 4 show an example of a work site monitoring device according to the present invention, FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, FIG. 4 is an external view of a wind speed and wind direction sensor, and 1 is an external view. A human sensor, 2 is a temperature / humidity sensor, 3 is an indicator light, 4 is an abnormality determination means (monitoring control unit) 5 described later, and a metal housing containing a speaker 6 as a sound alarm sound. , 7 indicate a wind speed wind direction sensor, and 10 indicates a pole to be attached. The motion sensor 1 is screwed and fixed to the side surface of the housing 4, and the temperature / humidity sensor 2 is connected to the housing 4 via a connecting metal fitting 11.
Further, the housing 4 is provided with a dedicated mounting bracket 12 for mounting on the pole 10, and the wind speed / wind direction sensor 7 is also provided with a mounting bracket 13 for mounting on the pole 10.
Reference numeral 8 denotes a power plug, which is used to supply power to the sensors 1, 2, and 7 including the monitoring and control unit 5 housed in the housing 4.

Further, the wind speed wind direction sensor 7 has a signal conversion unit 7a that converts wind speed information and wind direction information into an electric signal, is connected to the housing 4 by a cable 7b, and sends a signal to the monitoring control unit 5. This wind speed / wind direction sensor 7 is independent because it needs to be installed at a higher position than the other sensors 1 and 2 integrally provided in the housing 4, and is installed above the pole 10 in which the housing 4 is installed. ..

FIG. 5 is a schematic configuration diagram of the work site monitoring device of FIG. 1 and a monitoring system including its communication destination, and FIG. 6 shows a functional block diagram of the monitoring control unit 5 incorporated in the housing 4.
As shown in FIGS. 5 and 6, the monitoring control unit 5 includes a wireless communication unit 51 that wirelessly communicates with an external management server 15 via a mobile phone communication network and an Internet network constituting the communication network N, various set values, and alarm contents. A memory 52 for storing various messages for sounding from the speaker 6, a motion sensor 1, a temperature / humidity sensor 2, and a first interface (first IF) 53 for receiving signals output from each sensor of the wind speed / direction sensor 7. It includes an indicator light 3, a second interface (second IF) 54 to which the speaker 6 is connected, a monitoring control unit CPU 55 that controls the monitoring control unit 5, and the like.
Reference numeral 56 denotes a power source, and power is supplied from a commercial power source via the power plug 8. Then, power is supplied from the monitoring control unit 5 to each of the sensors 1, 2 and 7, the indicator lamp 3 and the speaker 6 via the first IF53 and the second IF54.

In the memory 52, a conversion table (for example, a WBGT value conversion table) that tabulates the probability of heat stroke from the threshold value of the wind speed that issues an alarm and the temperature / humidity is stored, and the monitoring control unit CPU 55 If the obtained wind speed data exceeds the threshold value, it is judged that an abnormality has occurred, and if the probability of developing heat stroke reaches a certain value by referring to the conversion table from the temperature / humidity data, a heat stroke danger signal is output and the indicator light 3 And a heat stroke alarm is issued from the speaker 6.
It should be noted that this alarm is executed in a plurality of stages, and the alarm content is changed depending on whether it is determined to be in the caution area or the danger area.

On the other hand, the monitoring control unit CPU 55 communicates with the management server 15 every minute, for example, transmits the value acquired from each sensor and the calculation result to the management server 15, and the user can use the personal computer or the personal computer via the management server 15. Communication is performed with the user terminal 16 such as a mobile terminal, the schedule (sensor operation time zone, etc.), threshold value, etc. input by the user terminal 16 are set, and the setting information is stored in the memory 52 as described above. To.

The motion sensor 1 uses an infrared sensor and includes three infrared sensors, two sensors that detect infrared rays in the horizontal direction and a sensor that detects infrared rays from the ground direction. With this configuration, malfunctions due to shaking of birds and trees can be reduced to enable detection (detection) of intruders, and when a moving object such as a suspicious person is detected, a detection signal is output to the monitoring control unit 5.

The temperature / humidity sensor 2 measures the temperature / humidity every minute, for example, and outputs the measurement data to the monitoring control unit 5. Further, the wind speed / wind direction sensor 7 measures the wind speed / direction every 0.25 seconds, and outputs the measured data to the monitoring / control unit 5. Although the wind direction data is transmitted here in addition to the wind speed data, only the wind speed data may be used.

The indicator lamp 3 has a light emitting unit of three colors of red, blue, and yellow, and emits light under the control of the monitoring control unit 5. For example, when a suspicious person is detected, the red light is blinked, when a heat stroke alarm is issued, the yellow light is blinked, and when the wind speed exceeds a predetermined value, the blue light is turned on.

The speaker 6 is installed at the bottom of the housing 4, and under the control of the monitoring control unit 5, various alarm sounds are issued, and various messages are sounded.

The operation of the work site monitoring device configured as described above is as follows. First, the operating time of the motion sensor 1, the temperature / humidity sensor 2, and the wind speed / direction sensor 7 is set according to the working time zone at the site. In addition, the wind speed threshold value and the like are set according to the monitoring environment. This setting may be performed by connecting a setting means such as a user terminal 16 to the housing 4, or may be performed from the user terminal 16 via the communication network N.
For example, if the motion sensor 1 is set to operate from 8:00 pm to 6:00 the next morning, it will not operate during the daytime work hours and malfunction can be prevented. Furthermore, you can rest assured if you set it to always operate on holidays. On the contrary, the temperature / humidity sensor 2 and the wind speed / direction sensor 7 may be turned on during the working hours and turned off during other hours.

In the work site monitoring device set in this way, the monitoring control unit CPU 55 performs the following monitoring operations. If a suspicious person invades during a time zone in which the motion sensor 1 is set to operate at night or the like, the motion sensor 1 detects it and performs an alarm operation. For example, the indicator light 3 blinks the red light, and the speaker 6 emits a threatening sound, and at the same time, for example, "There is a suspicious person, please evict immediately" is sounded.
Further, if the temperature and humidity satisfy a certain condition from the information of the temperature and humidity sensor 2, a heat stroke alarm is issued. For example, the indicator light 3 turns on the blue light, and the speaker 6 emits a message such as "Be careful of heat stroke" in addition to the sound of the alarm sound.

Furthermore, when the wind speed exceeds the set threshold value, a strong wind warning is issued. For example, the indicator light 3 turns on the yellow light, and the speaker 6 sounds a message such as "A strong wind is blowing. Please interrupt the work".
Then, the monitoring status of the detection of the suspicious person, the heat stroke warning, and the strong wind warning is transmitted from the wireless communication unit 51 to the management server 15 via the communication network N, and the mobile terminal or the like further managed by the manager from the management server 15. Is transmitted to the user terminal 16 of.

In this way, it is possible to carry out a simple installation work of attaching one housing 4 that shares suspicious person monitoring, heat stroke prevention monitoring, and alarm issuance to a pole 10 or the like, and also for moving the monitoring location. By moving one housing 4, it is possible to easily move a plurality of sensors and notification means. Further, the notification for the abnormality detection of the three types of sensors 1, 2 and 7 can be performed by the common notification means including the indicator lamp 3 and the speaker 6, and the cost can be reduced.
In addition, by notifying the monitoring status to the outside, the administrator can quickly respond to the intrusion of a suspicious person or changes in the site environment, and a separate signal line is not required for wireless transmission.
Further, since the operation time zone is set for each of the sensors 1, 2 and 7, it is possible to prevent the motion sensor 1 from being operated by the operator by turning off the motion sensor 1 during the work time zone. , Suspicious person detection can be reliably performed during unmanned hours such as nighttime and holidays. Further, by turning off the sensor that monitors the working environment during the time when there is no worker, it is not necessary to issue an alarm to the worker, so that the alarming operation does not become noise.
In addition to the acoustic notification, the notification is also made by light emission, so that the worker can easily recognize the alarm and threaten a suspicious person.

In the above embodiment, the temperature / humidity sensor 2 and the wind speed / wind direction sensor 7 are added to the motion sensor 1 to monitor the work site, but the two sensors, the motion sensor 1 and the temperature / humidity sensor 2, monitor the work site. Alternatively, it may be monitored by two sensors, a motion sensor 1 and a wind speed wind direction sensor 7.
Further, although it is not provided with a surveillance camera, a surveillance camera may be further attached to transmit the captured image to the outside.

1 ... Human sensor, 2 ... Temperature / humidity sensor, 3 ... Indicator light (light emission notification unit, notification means), 4 ... Housing, 5 ... Monitoring control unit, 6 ... Speaker (sound alarm unit, Notification means), 7 ... Wind speed and direction sensor, 10 ... Pole (bar-shaped mounting target), 12 ... Mounting bracket, 15 ... Management server, 16 ... User terminal, 51 ... Wireless communication unit, 52 ... Memory , 53 ... 1st IF (sensor signal input unit) 55 ... monitoring control unit CPU (abnormality determination means), N ... communication network.

Claims (7)

The motion sensor, the temperature / humidity sensor, the notification means for notifying the alarm, the detection operation of the motion sensor, and the notification operation of the notification means are controlled by determining the occurrence of an abnormality based on the measured values of the temperature / humidity sensor. Has an abnormality judgment means to
The housing containing the abnormality determining means is assembled with the motion sensor, the temperature / humidity sensor, the sounding unit as the notification means, and the mounting bracket for fixing the housing to the rod-shaped mounting target. ,
The abnormality determination means receives a sensing operation of the motion sensor to generate a threatening sound from the sound alarm unit, and satisfies a specific relationship in which the measured values of the temperature and humidity of the temperature / humidity sensor are set in advance. A work site monitoring device characterized in that a heat stroke alarm is issued and the sounding unit is operated to issue a predetermined heat stroke alarm. The abnormality determination means has a wireless communication unit for wirelessly notifying to the outside, and has a wireless communication unit.
The work site monitoring according to claim 1, wherein the wireless communication unit wirelessly transmits the detection operation information of the motion sensor and the issuance information of the heat stroke alarm to an external management server via a communication network. apparatus. A wind speed sensor is attached to the rod-shaped attachment target on which the housing is installed, and at the same time,
The housing is provided with a sensor signal input unit for inputting wind speed data output by the wind speed sensor.
The abnormality determining means is characterized in that when the wind speed shows a value equal to or higher than a preset wind speed from the wind speed information of the wind speed sensor, a strong wind warning is issued and the sounding unit is operated to issue a predetermined strong wind warning. The work site monitoring device according to claim 1 or 2. An abnormality determination means that controls the notification operation of the notification means by determining the occurrence of an abnormality based on the detection operation of the motion sensor and the measured value of the wind speed sensor, and the notification means that performs the motion sensor, the wind speed sensor, and the acoustic notification. And have
The motion sensor, the sound alarm unit as the notification means, the sensor signal input unit for inputting the wind speed data output by the wind speed sensor, and the housing as a rod-shaped attachment target in the housing containing the abnormality determination means. It is made up of mounting brackets for fixing.
The abnormality determining means emits a threatening sound from the alarm sound unit in response to the sensing operation of the motion sensor, and issues a strong wind warning when the measured value of the wind speed sensor shows a value equal to or higher than a preset wind speed. A work site monitoring device characterized in that the sounding unit is activated to issue a predetermined strong wind warning. The abnormality determination means has a wireless communication unit for wirelessly notifying to the outside, and has a wireless communication unit.
The work site monitoring device according to claim 4, wherein the wireless communication unit wirelessly transmits the detection operation information of the motion sensor and the issuance information of the strong wind warning to an external management server via a communication network. .. The work site monitoring device according to any one of claims 1 to 5, wherein an operating time zone is set for each of the sensors, and the abnormality determining means does not receive a sensor signal except during the set time zone. .. The notification means has a light emission notification unit attached to the housing in order to notify the occurrence of an abnormality by light emission in addition to the sound notification unit for acoustic notification.
The work site monitoring device according to any one of claims 1 to 6, wherein the abnormality determination means causes the light emission notification unit to emit light in accordance with an acoustic notification.

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