CN112584312A - Personnel number and position distribution monitoring system and method thereof - Google Patents
Personnel number and position distribution monitoring system and method thereof Download PDFInfo
- Publication number
- CN112584312A CN112584312A CN201910921794.8A CN201910921794A CN112584312A CN 112584312 A CN112584312 A CN 112584312A CN 201910921794 A CN201910921794 A CN 201910921794A CN 112584312 A CN112584312 A CN 112584312A
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- lora
- locator
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- position information
- security bracelet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention discloses a system and a method for monitoring personnel number and position distribution, wherein the system comprises a security bracelet worn by a managed person, a plurality of position information acquisition uploaders used for acquiring personnel position information, a plurality of danger source alarms installed at a danger source, and a plurality of LoRa gateways used for receiving the position information acquisition uploaders and the danger source alarm information; the LoRa gateway uploads the received information to a cloud-end platform through a LoRaWAN server; the position information acquisition and uploading device can also be used for directly uploading the position information to the cloud platform, so that the realization is simple and the cost is low; according to the method, the locators are arranged at the construction building and the inlet and outlet of the construction building, the alarm is arranged at the hazard source, positioning monitoring and danger warning of personnel are realized in all directions, and the method is safe and reliable; each locator monitors the security bracelet in the range in charge of the locator, and the building does not need to be modeled, the movement path of a planner and the like, so that the locator is simple and easy to implement.
Description
Technical Field
The invention relates to the technical field of personnel positioning, in particular to a personnel number and position distribution monitoring system and a method thereof.
Background
Under the large background of everything interconnection, the acquisition and application of position information are increasingly important in project landing. Compared with outdoor positioning, the indoor positioning has more complex and fine working environment and more diversified technologies. In the future, indoor positioning technology will sweep the aspects of our production and life, for example: management and scheduling of intelligent factory personnel and goods, production safety management, car searching navigation in underground parking lots, positioning management of intelligent building personnel/visitors, exhibition position navigation and the like.
Location-based bluetooth service solutions generally fall into two categories: proximity-based solutions and positioning systems. The principle is similar whether real-time positioning or indoor positioning, namely, an RSSI (received signal strength) mechanism is added in data packet transmission, the approximate range of a product is virtualized through the RSSI, and then a measurement algorithm of intersection is realized through a trilateration method, and finally the indoor positioning is finished.
As long as the bluetooth function of the device is turned on, it can be located. The bluetooth transmission is not affected by the line of sight, but for a complex space environment, the stability of the bluetooth system is slightly poor, the interference by noise signals is large, and the prices of bluetooth devices and equipment are high.
Under the double pressure of the increasing construction site accidents, the energy crisis and the environmental pollution problem, the personnel positioning and monitoring problem of the construction building is urgently needed to be solved. If the bluetooth technology is adopted for positioning, the problems of poor stability, large interference from noise signals and high cost may occur.
Disclosure of Invention
The invention aims to provide a system and a method for monitoring the distribution of the number of personnel and the positions, wherein the system provides a LoRa locator which is combined with a BLE Bluetooth technology as a communication carrier, and is connected with a security bracelet and a hazard source alarm to effectively realize three-party communication; meanwhile, the method lays the locators at the construction building and the inlet and outlet of the construction building and lays the alarm at the hazard source, so that the positioning monitoring and the hazard warning of construction workers are realized in all directions.
In order to achieve the purpose, the invention provides a personnel number and position distribution monitoring system, which adopts the following technical scheme:
a personnel number and position distribution monitoring system comprises a security bracelet worn by a managed person, a plurality of position information acquisition uploaders used for acquiring personnel position information, a plurality of danger source alarms installed in a danger source, and a plurality of LoRa gateways used for receiving the position information acquisition uploaders and the danger source alarm information; the LoRa gateway uploads the received information to a cloud-end platform through a LoRaWAN server; the position information acquisition and uploading device can also be used for directly uploading the position information to the cloud-end platform.
Preferably, one part of the position information acquisition uploaders is a LoRa locator, and the LoRa locator is arranged close to the LoRa gateway and used for detecting the position information of the security bracelet and uploading the position information to the cloud-end platform through the LoRa gateway and the loRaWAN server; another part positional information gathers uploader is the 2G locator, and the LoRa gateway arrangement is kept away from to the 2G locator for directly upload the positional information of security bracelet to cloud end platform.
Preferably, power module, antenna, loRa module, BLE bluetooth communication module are all put to loRa locator, danger source alarm.
Preferably, the 2G locator is provided with a BLE bluetooth module, a 2G communication module, a GPS positioning module, a power supply module, and an antenna.
Preferably, the security bracelet is provided with a BLE Bluetooth module, a vibration prompt module, a power supply module and an antenna.
Preferably, the loRa gateway is internally provided with a loRa module, a power supply module, an antenna and a microprocessor.
The invention also provides a method for monitoring the distribution of the number of the personnel and the positions, which adopts the following technical scheme:
a security bracelet worn by each construction worker; the method comprises the following steps that LoRa locators or 2G locators are arranged at intervals of a construction building and an inlet and an outlet of the construction building and are used for detecting security bracelets to judge the distribution condition of workers entering and exiting the construction building and in the construction building, and detection results are uploaded to a cloud end platform through a LoRa gateway or directly; at least one danger source alarm is arranged on each danger source and used for detecting strong and weak signals of the security bracelet to judge whether workers enter a dangerous area or not and uploading a detection result to the cloud-end platform through the LoRa gateway; install the loRa gateway near the building to receive the information that loRa locator, hazard source alarm sent, and upload the information of receiving to the cloud end platform through the LoRaWAN server.
Preferably, the 2G positioner is arranged on the ladder at intervals and is used for detecting strong and weak signals of security bracelets on a construction floor to judge the positions and the number of construction workers and uploading detection signals to the cloud-end platform; arranging at least one LoRa locator at a stairway opening of each floor of a construction building, and detecting strong and weak signals of a security bracelet near the stairway opening to judge the position and the number of construction workers, and uploading the detection signals to a cloud-end platform through a LoRa gateway; at least one LoRa locator is respectively placed near import, the export of construction building for the signal intensity of detecting the security bracelet, with the situation of judging operation personnel business turn over construction building, and upload detection signal to cloud end platform through the LoRa gateway.
Preferably, all communicate each other through BLE bluetooth wireless communication mode between security bracelet and loRa locator, danger source alarm, the 2G locator.
Preferably, the danger source alarm detects the signal of security bracelet to after judging that security bracelet gets into the danger area, feedback signal carries out the vibrations suggestion for the security bracelet that corresponds.
By adopting the scheme, the invention has the beneficial effects that:
1) the security bracelet in the system is communicated with the LoRa positioner, the hazard source alarm and the 2G positioner in a BLE Bluetooth wireless communication mode, so that the system is simple to realize; the LoRa locator and the hazard source alarm upload information to the cloud platform through the LoRa gateway, so that the information can be transmitted in a long distance, the cost is low, and the power consumption is ultra-low; the 2G locator directly uploads the data to the cloud-end platform through a 2G (GPRS) communication technology.
2) According to the method, the locators are arranged at the construction building and the inlet and outlet of the construction building, the alarm is arranged at the hazard source, positioning monitoring and danger warning of personnel are realized in all directions, and the method is safe and reliable; each locator monitors the security bracelet in the range in charge of the locator, and the building does not need to be modeled, the movement path of a planner and the like, so that the locator is simple and easy to implement.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic block diagram of the present invention;
wherein the figures identify the description:
1-security bracelet, 2-danger source alarm,
3-LoRa gateway, 4-LoRaWAN server,
5-LoRa locator, 6-2G locator.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 2, the present invention provides a system for monitoring the number of people and the distribution of positions, including a security bracelet 1 worn by a managed person, a plurality of position information acquisition uploaders 5/6 for acquiring the position information of the person, a plurality of hazard source alarms 2 installed in a hazard source, and a plurality of LoRa gateways 3 for receiving the information of the position information acquisition uploaders 5/6 and the hazard source alarms 2; the LoRa gateway 3 uploads the received information to a cloud-end platform through a LoRaWAN server 4; the location information collecting uploader 5/6 may also be configured to upload location information directly to a cloud-end platform.
One part of the position information acquisition uploader 5/6 is an LoRa positioner 5, and the LoRa positioner 5 is arranged close to the LoRa gateway 3 and used for detecting the position information of the security bracelet 1 and uploading the position information to the cloud-end platform through the LoRa gateway 3 and the LoRaWAN server 4; another part positional information gathers uploader 5/6 and is 2G locator 6, and 2G locator 6 is far away from loRa gateway 3 and arranges for directly upload to cloud end platform the positional information of security bracelet 1.
LoRa locator 5, hazard alarm 2 all embed power module, antenna, LoRa module, BLE bluetooth communication module. The 2G locator 6 is internally provided with a BLE Bluetooth module, a 2G communication module, a GPS positioning module, a power supply module and an antenna.
The security bracelet 1 is internally provided with a BLE Bluetooth module, a vibration prompt module, a power supply module and an antenna. The LoRa gateway 3 is internally provided with a LoRa module, a power supply module, an antenna and a microprocessor.
The invention also provides a method for monitoring the distribution of the number of the personnel and the positions, which adopts the following technical scheme:
a security bracelet 1 worn by each construction worker; LoRa locators 5 or 2G locators 6 are arranged at intervals of a certain distance at the construction building and the inlet and outlet of the construction building and used for detecting the security bracelet 1 to judge the distribution condition of workers entering and exiting the construction building and in the construction building, and the detection result is directly uploaded to the cloud end platform through the LoRa gateway 3; at least one danger source alarm 2 is arranged on each danger source, the danger source alarm 2 is used for detecting strong and weak signals of the security bracelet 1 so as to judge whether workers enter a dangerous area or not, and a detection result is uploaded to the cloud-end platform through the LoRa gateway 3; install loRa gateway 3 near the building to receive the information that loRa locator 5, hazard source alarm 2 sent, and upload the information of receiving to cloud end platform through loRaWAN server 4.
The 2G positioning devices 6 are arranged on the crawling ladder at intervals of a certain distance (optionally 30-50 m) and used for detecting strong and weak signals of the security bracelet 1 on the construction floor to judge the position and the number of construction workers and uploading detection signals to the cloud-end platform; at least one LoRa positioner 5 is arranged at the stairway of each floor of the construction building and used for detecting the strong and weak signals of the security bracelet 1 near the stairway to judge the position and the number of construction workers and uploading the detection signals to a cloud-end platform through a LoRa gateway 3; at least one LoRa locator 5 is respectively placed near import, the export of construction building for detect the signal of security bracelet 1 strong and weak, with the situation of judging the operation personnel business turn over construction building, and upload detection signal to cloud end platform through LoRa gateway 3.
All communicate each other through BLE bluetooth wireless communication mode between security bracelet 1 and LoRa locator 5, hazard source alarm 2, the 2G locator 6. Danger source alarm 2 detects the signal of security bracelet 1 to after judging security bracelet 1 and getting into the danger area, the vibration suggestion is carried out for corresponding security bracelet 1 to the feedback signal.
The working principle of the invention is as follows:
safety bracelet 1 and loRa locator 5 in this system, hazard source alarm 2, communicate with each other with BLE bluetooth wireless communication mode between 2G locator 6, hazard source alarm 2, loRa locator 5 carries out information exchange based on LoRaWAN ^ agreement with loRa gateway 3, add RSSI (received signal strength) mechanism in the data packet transmission, come the general scope of the virtual product of out through RSSI, rethread trilateration, realize the measurement algorithm of intersect each other, finally accomplish regional location. LoRa gateway 3 adopts the communication technology interconnect of LoRa with LoRa locator 5, has solved the obstructed problem of communication well.
LoRaWAN defines the communication protocol and system architecture, while LoRa defines the physical layer, which uses a remote star architecture. In a LoRaWAN network, nodes are not associated with a particular gateway. Instead, data sent by a node is typically received by multiple gateways. Each gateway forwards the received data packet from the end node to the cloud-based network server via the LoRa locator. The web server has the intelligence required to filter duplicate packets from different gateways, check security, send ACKs to the gateways, and send the packets to a particular application server.
Some of the position information acquisition uploaders 5/6 are LoRa locators 5, the LoRa locators 5 are arranged close to the LoRa gateway 3, and the LoRa locators 5 can upload signals to the LoRa gateway 3; on the floor under construction, for preventing that the signal from uploading untimely or unable upload, another part positional information gathers uploader 5/6 and chooses to adopt 2G locator 6, 2G locator 6 is installed on the cat ladder (the cat ladder rises along with the floor of construction, stops in floor week side under construction), goes up and down along with the cat ladder, 2G locator 6 can directly upload the positional information of the security bracelet 1 that detects to cloud end platform, the built-in 2G communication module of 2G locator 6 is 2G communication card.
And LoRa gateway 3:
in a specific embodiment, the LoRa gateways 3 are installed in an engineering department (engineering command center) of building construction, the number of the LoRa gateways 3 depends on the size of a construction monitoring range, each LoRa gateway 3 can cover 5 to 8KM. in an urban environment, and the coverage area of an open area is larger than 15 KM. LoRa gateway 3 is based on city level communication gateway of LoRaWAN ^ protocol, operates in OPWRT operating system, supports to go up multichannel concurrent, can establish the thing networking system of large capacity more swiftly high-efficiently, realizes functions such as data acquisition, management, control of various LoRaWAN application nodes, and work frequency range 433~928MHz supports to insert 100000 node equipment, and the gateway passes through 2G/3G/4G, ethernet access in the high in the clouds platform, built-in GNSS synchronization position coordinate information.
The LoRa gateway 3 provides persistent, low power, wide area connectivity for LoRa service providers and individual enterprises wishing to extend their LoRa network coverage to support M2M and internet of things applications, which may be deployed as part of existing telecommunication towers, stand-alone racks, or wall installations.
LoRa locator 5:
in a specific embodiment, the LoRa locator 5 is BGW5053-L (the erection height is 2 meters, and the open effective distance is 50 meters), has ultra-low power consumption, is in remote communication and is designed in a three-prevention mode, and meets the requirements of harsh environments.
As the floor locator, arrange in each floor stairwell department of construction building, built-in BLE bluetooth module through the signal strength of the security bracelet 1 that the bluetooth monitoring constructor wore, judges the constructor position (whether in locator detection area), and upload to loRa gateway 3 with information based on loRa communication technology, thereby upload to cloud end platform through loRaWAN server 4.
A LoRa positioner 5 is arranged at an inlet and an outlet of a construction building, such as the inlet direction of a gate (the position which can be 30-50 meters away from the gate), and is used for detecting constructors entering the construction building; a LoRa locator 5 is placed in the outlet direction (the position 30-50 meters away from the gate) and used for detecting constructors who leave the construction building, so that whether the constructors enter the field or leave the field is judged, and the number of the constructors in the construction building is conveniently monitored.
2G positioner 6:
in a specific embodiment, the type of the 2G locator 6 is BGW5053-G (the erection height is 2 meters, the clear effective distance is 50 meters), the 2G locator is preferably arranged every 30-50 meters, the GPS high-precision location tracking (optional) is realized, and the three-prevention design is adopted, so that the requirement of harsh environment is met.
As a floor locator, the device is arranged on a ladder (the ladder rises along with a construction floor and stays on the building floor being built, namely the highest floor), so that the personnel position detection and monitoring on the floor plane are realized. The built-in BLE Bluetooth module detects security bracelet 1 (BLE signal intensity detects) through BLE Bluetooth, judges constructor position (whether in locator detection area), and passes through 2G (GPRS) communication technology with information, and data can be directly uploaded to cloud end platform. In addition, a GPS positioning module is arranged in the device, so that the installation position of the device is convenient to confirm.
Security bracelet 1:
similar to the structure of a watch, the face shell and the bottom cover are made of PC materials.
The managed personnel in the invention are construction personnel in a construction site, each construction personnel wears a security bracelet 1, the locator 5/6 realizes the position detection of the construction personnel by detecting the signal intensity of the security bracelet 1, a BLE Bluetooth module is arranged in the locator, the locator is an interactive alarm worn on the hands of the construction personnel, and the platform and the equipment realize the position monitoring and management of the construction personnel by carrying out information interaction with a LoRa locator 5, a danger source alarm 2, a 2G locator 6 and the like in a construction site.
Hazard source alarm 2:
dangerous source alarm 2 is a type based on LoRaWAN alarm, embeds BLE bluetooth module, also can upload the platform with data in the place that does not have cellular network and WiFi, free ISM frequency channel, 470MHz-510MHz, BLE bluetooth is surveyed (effective distance 0~25 meters adjustable).
At least one danger source alarm 2 is arranged in each danger source, the danger sources include but are not limited to hollow floors, surrounding frames, places where the buildings are not built, elevator mouths, places where tower cranes pass through and the like, whether security bracelets are close to a certain range or not is detected in real time (the security bracelets are judged by detecting the strength of signals of the security bracelets) so as to judge whether constructors are in dangerous areas or not; if the construction personnel enter the dangerous area, the security bracelet 1 vibrates to remind the construction personnel of paying attention to safety; meanwhile, the hazard source alarm 2 uploads a detection result to the LoRa gateway 3 through a built-in LoRa module. The method can be widely applied to inspection and identification of dangerous areas by construction safety workers and carries out safety warning on the construction workers in the areas.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A personnel number and position distribution monitoring system is characterized by comprising a security bracelet worn by a manager, a plurality of position information acquisition uploaders used for acquiring personnel position information, a plurality of danger source alarms installed at danger sources, and a plurality of LoRa gateways used for receiving the position information acquisition uploaders and the danger source alarm information; the LoRa gateway uploads the received information to a cloud-end platform through a LoRaWAN server; the position information acquisition and uploading device can also be used for directly uploading the position information to the cloud-end platform.
2. The personnel number and position distribution monitoring system according to claim 1, wherein one part of the plurality of position information acquisition uploaders is a LoRa locator, and the LoRa locator is arranged close to a LoRa gateway and is used for detecting the position information of a security bracelet and uploading the position information to the cloud-end platform through the LoRa gateway and a LoRaWAN server; another part positional information gathers uploader is the 2G locator, and the LoRa gateway arrangement is kept away from to the 2G locator for directly upload the positional information of security bracelet to cloud end platform.
3. The system for monitoring the distribution of the number of people and the location according to claim 2, wherein a power supply module, an antenna, an LoRa module and a BLE bluetooth communication module are arranged in each of the LoRa positioner and the hazard source alarm.
4. The system according to claim 2, wherein a BLE bluetooth module, a 2G communication module, a GPS positioning module, a power supply module, and an antenna are built in the 2G locator.
5. The system for monitoring the distribution of the number of people and the distribution of the positions according to claim 1, wherein a BLE Bluetooth module, a vibration prompt module, a power supply module and an antenna are arranged in the security bracelet.
6. The system for monitoring the distribution of the number of people and the location of the people according to claim 1, wherein an LoRa module, a power supply module, an antenna and a microprocessor are arranged in the LoRa gateway.
7. A method for monitoring the distribution of the number of people and the positions is characterized by comprising the following steps:
a security bracelet worn by each construction worker;
the method comprises the following steps that LoRa locators or 2G locators are arranged at intervals of a construction building and an inlet and an outlet of the construction building and are used for detecting security bracelets to judge the distribution condition of workers entering and exiting the construction building and in the construction building, and detection results are uploaded to a cloud end platform through a LoRa gateway or directly;
at least one danger source alarm is arranged on each danger source and used for detecting strong and weak signals of the security bracelet to judge whether workers enter a dangerous area or not and uploading a detection result to the cloud-end platform through the LoRa gateway;
install the loRa gateway near the building to receive the information that loRa locator, hazard source alarm sent, and upload the information of receiving to the cloud end platform through the LoRaWAN server.
8. The method for monitoring the distribution of the number of people and the location according to claim 7,
the 2G positioning devices are arranged on the crawling ladder at intervals and used for detecting strong and weak signals of security bracelets on a construction floor to judge the positions and the number of construction workers and uploading detection signals to the cloud-end platform;
arranging at least one LoRa locator at a stairway opening of each floor of a construction building, and detecting strong and weak signals of a security bracelet near the stairway opening to judge the position and the number of construction workers, and uploading the detection signals to a cloud-end platform through a LoRa gateway;
at least one LoRa locator is respectively placed near import, the export of construction building for the signal intensity of detecting the security bracelet, with the situation of judging operation personnel business turn over construction building, and upload detection signal to cloud end platform through the LoRa gateway.
9. The method for monitoring the distribution of the number of people and the location according to claim 7, wherein the security bracelet and the LoRa locator, the hazard source alarm and the 2G locator are communicated with each other in a BLE Bluetooth wireless communication mode.
10. The personnel number and location distribution monitoring method according to claim 7, wherein the hazard source alarm detects a signal of a security bracelet, and feeds back a signal to the corresponding security bracelet to perform vibration prompting after judging that the security bracelet enters a dangerous area.
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| CN113709860A (en) * | 2021-08-12 | 2021-11-26 | 电子科技大学 | Indoor positioning device and method for interlayer transition area |
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Application publication date: 20210330 |