Network alarm system and processing method for falling of operating personnel in building

Abstract

The invention discloses a network alarm system and a processing method for falling of operating personnel in a building, and relates to the technical field of safety of the operating personnel in the building, and the network alarm system comprises a plurality of sensors / terminals, a plurality of ZigBee routers / nodes, at least one ZigBee service / coordinator, and at least one guardian alarm transceiver. The system has the beneficial effects that the safety condition of the operating personnel can be timely and accurately monitored by collecting and analyzing the state data of the operating personnel and the environmental gas concentration data in real time, an alarm is quickly triggered when dangerous conditions such as falling, falling, drowning, coma or abnormal gas concentration occur, an evacuation instruction is sent to a guardian and the operating personnel, and the safety of the operating personnel is ensured. The safety guarantee level in the building construction process is effectively improved, the accident casualty risk is reduced, the requirements of the complex building construction environment are met, and important practical application value and wide popularization prospects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of the safety of construction workers, and in particular to a network alarm system and a processing method for the fall of construction workers in a building. Background Art

[0002] During the construction process, construction workers often face various safety risks, among which the incidence of high - altitude fall accidents is the highest and the danger is extremely great. According to the statistical data in recent years, among the "three major injuries" (high - altitude fall, collapse, and object strike) accidents in the construction industry, the high - altitude fall accidents account for the highest proportion and are one of the main causes of construction casualties. Therefore, reducing and avoiding the occurrence of high - altitude fall accidents is of great significance for reducing construction casualties. In addition, there are other safety hazards during the construction process. For example, when workers work in an enclosed space, due to poor ventilation, toxic and harmful gases are likely to be generated, which pose a threat to the health and life safety of workers. In these environments, workers may fall into a coma due to excessive gas concentration. If not discovered and rescued in time, serious consequences will occur.

[0003] At present, although there are some safety monitoring devices and alarm systems applied in the construction field, these devices and systems have many deficiencies. For example, existing monitoring devices can often only monitor a single risk factor, such as fall or gas concentration, and cannot monitor multiple dangerous situations simultaneously; alarm systems usually use wired connections, with complex wiring, high installation and maintenance costs, and cannot be used normally in areas with insufficient wireless signal coverage; in addition, existing systems lack real - time monitoring and rapid response capabilities and cannot notify workers and supervisors in time when danger occurs, resulting in delayed rescue. Summary of the Invention

[0004] In view of the above - mentioned existing problems, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is: how to solve the problem that the existing monitoring devices worn by existing construction workers can only monitor a single risk factor, cannot comprehensively and real - time monitor the status of workers and the gas concentration in the environment, and cannot fully ensure the personal safety of workers.

[0006] To solve the above - mentioned technical problems, the present invention provides the following technical solutions: A network alarm system for the fall of construction workers in a building, including a plurality of sensors / terminals, a plurality of ZigBee routers / nodes, at least one ZigBee server / coordinator, and at least one guardian alarm transceiver;

[0007] The sensors / terminals communicate with the ZigBee routers / nodes and are used to monitor the status of workers and the gas concentration in the environment where they are located in real - time;

[0008] The ZigBee router / node communicates with the ZigBee service / coordinator and adopts the ZigBee protocol;

[0009] The ZigBee service / coordinator, as the system center, is used for data processing and data distribution;

[0010] The guardian alarm transceiver communicates with the ZigBee service / coordinator via Wi-Fi and is used to receive alarm information and send evacuation instructions to the operators.

[0011] As a preferred solution of the network alarm system for the fall of operators in a building according to the present invention, wherein: the sensor / terminal includes an acceleration sensor for detecting the states of the operator such as falling, tripping, drowning, and coma;

[0012] An attitude sensor for detecting the attitude change of the operator;

[0013] A gas sensor for detecting the oxygen concentration and the concentration of toxic and harmful gases;

[0014] A positioning module for real-time monitoring of the location information of the operator.

[0015] As a preferred solution of the network alarm system for the fall of operators in a building according to the present invention, wherein: the guardian alarm transceiver includes a grouping management module for grouping and managing the sensor / terminal;

[0016] A status display module for displaying the status of each person wearing the sensor / terminal and the gas situation at the location;

[0017] An alarm setting module for setting manual / automatic broadcasting and alarm rules.

[0018] As a preferred solution of the network alarm system for the fall of operators in a building according to the present invention, wherein: it further includes a MESH network, which supports daisy-chain connection, tree connection, and star connection, and the sensor / terminal can automatically establish a connection with another ZigBee router / node after losing connection with one ZigBee router / node.

[0019] As a preferred solution of the network alarm system for the fall of operators in a building according to the present invention, wherein: the guardian alarm transceiver further includes an alarm trigger unit for judging whether to trigger an alarm according to a preset rule;

[0020] An evacuation instruction module for sending evacuation instructions to the operators;

[0021] A graphical user interface for displaying the status, location, and gas concentration information of the operator.

[0022] As a preferred solution of the network alarm system for building interior workers' fall described in the present invention, the following is further included: an alarm trigger unit, which triggers an alarm when any of the following situations is detected: a worker falls, stumbles, drowns or becomes unconscious;

[0023] The oxygen concentration at the location where the worker is located is lower than a preset threshold;

[0024] The concentration of toxic and harmful gases at the location where the worker is located is higher than a preset threshold.

[0025] As a preferred solution of the network alarm system for building interior workers' fall described in the present invention, the communication protocol between the ZigBee router / node and the sensor / terminal is the ZigBee protocol, and the communication protocol between the ZigBee service / coordinator and the guardian alarm transceiver is the Wi-Fi protocol, and the system supports seamless switching between the ZigBee and Wi-Fi networks.

[0026] As a preferred solution of the network alarm system for building interior workers' fall described in the present invention, the guardian alarm transceiver can set different alarm rules according to the work content and area, and display the status, location and gas concentration information of the worker through the graphical user interface.

[0027] As a preferred solution of the network alarm system for building interior workers' fall described in the present invention, the alarm judgment unit further includes:

[0028] The guardian alarm transceiver judges whether to trigger an alarm according to the preset rules;

[0029] The guardian alarm transceiver monitors the status and gas concentration data of the worker in real time.

[0030] To solve the above technical problems, the present invention provides a network alarm processing method for building interior workers' fall: it includes collecting the status data of the worker and the gas concentration data of the surrounding environment through the sensor / terminal;

[0031] Transmitting the collected data to the ZigBee router / node through the ZigBee protocol, and then transmitting it from the ZigBee router / node to the ZigBee service / coordinator;

[0032] The ZigBee service / coordinator processes and analyzes the data;

[0033] The guardian alarm transceiver judges whether to trigger an alarm according to the preset rules;

[0034] When it is detected that a worker has fallen, tripped, drowned, fallen into a coma, or the gas concentration is abnormal, the guardian alarm transceiver issues an alarm;

[0035] The guardian alarm transceiver sends an evacuation instruction to the worker.

[0036] The beneficial effects of the present invention are as follows: The network alarm system and processing method for the fall of workers in a building of the present invention can timely and accurately monitor the safety status of workers by collecting and analyzing the status data of workers and the environmental gas concentration data in real time, and can quickly trigger an alarm in case of dangerous situations such as falling, tripping, drowning, falling into a coma, or abnormal gas concentration, send an evacuation instruction to the guardian and the worker, effectively improve the safety guarantee level during the building construction process, reduce the risk of accident casualties, meet the requirements of complex building construction environments, and have important practical application value and broad promotion prospects. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is an architecture diagram of a network alarm system for the fall of workers in a building according to the present invention.

[0039] Figure 2 It is a tree-like link diagram of a network alarm system for the fall of workers in a building according to the present invention.

[0040] Figure 3 It is a daisy-chain link diagram of a network alarm system for the fall of workers in a building according to the present invention.

[0041] Figure 4 It is a sensor / terminal structure diagram of a network alarm system for the fall of workers in a building according to the present invention.

[0042] Figure 5 It is a structure diagram of the guardian alarm transceiver in the present invention.

[0043] Figure 6 It is a flowchart of a network alarm processing method for the fall of workers in a building according to the present invention. Detailed Embodiments

[0044] In order to enable those skilled in the art to better understand the present invention, the following will further describe the present invention in detail in conjunction with the specific embodiments and the drawings.

[0045] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may vary according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be construed as simple names, but rather based on the meanings of the terms and the overall description of the present invention.

[0046] Referring to Figures 1 to 5 , this embodiment provides a network alarm system for preventing the fall of construction workers, including a plurality of sensors / terminals 11, a plurality of ZigBee routers / nodes 12, at least one ZigBee service / coordinator 13, and at least one guardian alarm transceiver 14.

[0047] The sensors / terminals 11 communicate with the ZigBee routers / nodes 12 and are used to monitor the status of the workers and the gas concentration in the environment in real time.

[0048] The ZigBee routers / nodes 12 communicate with the ZigBee service / coordinator 13 and adopt the ZigBee protocol.

[0049] The ZigBee service / coordinator 13 serves as the system center and is used for data processing and data distribution.

[0050] The guardian alarm transceiver 14 communicates with the ZigBee service / coordinator 13 via Wi-Fi and is used to receive alarm information and send evacuation instructions to the workers.

[0051] As an optional embodiment, the sensors / terminals 11 include an acceleration sensor 111 for detecting the states of the workers such as falling, tripping, drowning, and coma.

[0052] An attitude sensor 112 for detecting the attitude changes of the workers.

[0053] A gas sensor 113 for detecting the oxygen concentration and the concentrations of toxic and harmful gases.

[0054] A positioning module 114 for monitoring the location information of the workers in real time.

[0055] As an optional embodiment, the guardian alarm transceiver 14 includes a grouping management module 141 for grouping and managing the sensors / terminals 11.

[0056] A status display module 142 for displaying the status of each person wearing the sensors / terminals 11 and the gas conditions at the locations.

[0057] The alarm setting module 143 is used to set the manual / auto broadcast and alarm rules;

[0058] The graphical user interface 144 is used to display the status, location and gas concentration information of the operators.

[0059] As an alternative embodiment, it further includes a MESH network, which can perform daisy-chain link, tree link and star link. After the sensor / terminal 11 loses the connection with one ZigBee router / node 12, it can automatically establish a connection with another ZigBee router / node 12.

[0060] As an alternative embodiment, the alarm setting module 143 includes an alarm trigger unit 1431 for judging whether to trigger an alarm according to a preset rule;

[0061] An evacuation instruction unit 1432 for sending an evacuation instruction to the operators;

[0062] An alarm judgment unit 1433 for judging whether the alarm threshold is reached.

[0063] As an alternative embodiment, the alarm trigger unit 1431 triggers an alarm when any of the following situations is detected: an operator falls, stumbles, drowns or becomes unconscious;

[0064] The oxygen concentration at the location where the operator is located is lower than the preset threshold;

[0065] The concentration of toxic and harmful gases at the location where the operator is located is higher than the preset threshold.

[0066] As an alternative embodiment, the communication protocol between the ZigBee router / node 12 and the sensor / terminal 11 is the ZigBee protocol, and the communication protocol between the ZigBee service / coordinator 13 and the guardian alarm transceiver 14 is the Wi-Fi protocol. The system supports seamless switching between ZigBee and Wi-Fi networks.

[0067] As an alternative embodiment, the guardian alarm transceiver 14 can set different alarm rules according to the operation content and area, and display the status, location and gas concentration information of the operators through the graphical user interface 144.

[0068] The alarm judgment unit 1433 judges whether to trigger an alarm according to a preset rule by the guardian alarm transceiver;

[0069] As an alternative embodiment, the guardian alarm transceiver monitors the status and gas concentration data of the operators in real time.

[0070] In this embodiment, the acceleration sensor 111 monitors the motion acceleration of the operator in real time. When the operator falls, the acceleration sensor will detect an abnormal acceleration change within a short period of time, such as the acceleration suddenly increasing to a certain threshold value, such as 10g, or the acceleration approaching 0 in the free fall state. The microprocessor in the sensor / terminal 11 preprocesses and analyzes the received acceleration data to determine whether it conforms to the fall characteristics.

[0071] In this embodiment, the attitude sensor 112 monitors the body attitude change of the operator in real time. When the operator falls or drowns, the attitude sensor will detect an abnormal change in the body attitude, such as the body tilt angle exceeding a certain threshold value or remaining in an abnormal attitude for a long time. The microprocessor in the sensor / terminal 11 also preprocesses and analyzes the received attitude data to determine whether it conforms to the fall or drowning characteristics.

[0072] In this embodiment, the positioning module 114 can be a GPS, which monitors the position information of the operator in real time, including longitude, latitude, and altitude. The microprocessor in the sensor / terminal 11 fuses the position data with other sensor data to form comprehensive operator status information.

[0073] In this embodiment, the sensor / terminal 11 periodically transmits the collected acceleration, attitude, and position data to the nearest ZigBee router / node 12 through the ZigBee protocol. The transmission period is set to 1 second according to the application scenario and accuracy requirements to ensure real-time performance. After receiving the data, the ZigBee router / node 12 forwards it to the ZigBee service / coordinator 13 through the ZigBee protocol.

[0074] In this embodiment, the ZigBee service / coordinator 13 performs fusion analysis on the received acceleration, attitude, and position data. Through the mutation detection of the acceleration data, combined with the attitude change analysis of the attitude data, and the moving trajectory analysis of the position data, it comprehensively determines whether the status of the operator is abnormal. For example, when the acceleration data detects that the operator has fallen, the attitude data and position data can further verify whether the operator is in a free fall state or whether there is an abnormal change in the moving trajectory, thereby improving the accuracy of the judgment.

[0075] In this embodiment, the ZigBee service / coordinator 13 is built-in with an alarm trigger module 22, which monitors the status of the operator in real time according to the preset alarm rules. When it detects that the operator is in an abnormal state such as falling, falling, or drowning, the alarm trigger module immediately triggers an alarm.

[0076] The ZigBee service / coordinator 13 pushes the alarm information to the guardian alarm transceiver 14 via Wi-Fi. The alarm information includes details such as the number of the operator, location information, abnormal status type, and occurrence time. At the same time, the ZigBee service / coordinator 13 will also notify the external emergency rescue agency by means of text messages or phone calls according to the preset alarm rules.

[0077] In this embodiment, after receiving the alarm information, the safety officer and the project manager of the guardian alarm transceiver 14 can send evacuation instructions to the operators in this area through the monitoring software. The evacuation instructions can be conveyed to the operators in the form of sound, vibration, or text display to ensure that they can receive the notice in time and evacuate the dangerous area according to the predetermined route.

[0078] The sensor / terminal 11 and the ZigBee router / node 12 adopt the MESH networking 21 method. When the sensor / terminal 11 loses its connection with a ZigBee router / node 12, it can automatically scan the surrounding ZigBee networks and establish a connection with another ZigBee router / node 12 with a stronger signal strength, and the switching time is within 1 second to ensure the continuity and reliability of data transmission.

[0079] In this embodiment, the system supports seamless switching between ZigBee and Wi-Fi networks. When the ZigBee network fails or the signal coverage is insufficient, the sensor / terminal 11 can automatically switch to the Wi-Fi network and continue to transmit data through the ZigBee service / coordinator 13 connected by a wired network to ensure the stable operation of the system.

[0080] Preferably, the ZigBee service / coordinator 13 is installed in the control room at the construction site, equipped with a high-performance processor and a large-capacity memory, responsible for data processing and distribution. It communicates with the on-site monitoring center and external emergency rescue agencies through a wired network. Multiple ZigBee routers / nodes are deployed, distributed on each floor and key areas of the building. Each router / node is equipped with a ZigBee wireless communication module, supporting the ZigBee 3.0 protocol, with a transmission distance of up to 100 meters. And it is powered by extending the power line to ensure normal operation in areas without power supply. Each operator wears a sensor / terminal 11, which is built-in with a high-precision acceleration sensor 111, an attitude sensor 112, and a GPS positioning module 114. The measurement range of the acceleration sensor is ±16g, the resolution is 0.001g, and the sampling rate is 100Hz; the attitude sensor uses a three-axis gyroscope and a three-axis accelerometer to measure the body attitude angle of the operator in real time, with a measurement accuracy of ±2 degrees; the GPS positioning module can provide position information with an accuracy of 5 meters. In addition, the sensor / terminal is also equipped with a low-power microprocessor and a built-in battery, and the battery life can reach 24 hours. The guardian alarm transceiver 14 includes the mobile phones and tablets of on-site safety officers, as well as the dedicated monitoring computers in the project manager's office. Special monitoring software is installed on these devices, which can communicate with the ZigBee service / coordinator 13 through Wi-Fi. The monitoring software has functions such as real-time data display, alarm information push, and evacuation instruction sending.

[0081] In this embodiment, the gas sensor 113 monitors the oxygen concentration around the operator in real time. The normal range of the oxygen concentration is set to be 19.5% to 23.5%. When it is detected that the oxygen concentration is lower than 19.5%, the sensor / terminal 11 immediately starts the alarm program and transmits the oxygen concentration data to the nearest ZigBee router / node 12 through the ZigBee protocol.

[0082] Preferably, the gas sensor 113 also monitors the concentrations of toxic and harmful gases such as carbon monoxide and hydrogen sulfide. The safety limit value of the carbon monoxide concentration is set to be 25ppm, and the safety limit value of the hydrogen sulfide concentration is set to be 10ppm. When it is detected that the concentration of toxic and harmful gases exceeds the safety limit value, the sensor / terminal 11 also transmits the data to the ZigBee router / node 12 through the ZigBee protocol.

[0083] The ZigBee router / node 12 transmits the received gas concentration data to the ZigBee service / coordinator 13. The service / coordinator 13 processes and fuses the received gas concentration data, and combines it with the data collected by the acceleration sensor 111 and the positioning module 114 to form comprehensive monitoring information.

[0084] The ZigBee service / coordinator 13 is built-in with professional data analysis software to perform real-time analysis and statistics on the gas concentration data. By comparing historical data and trend analysis, it predicts the changing trend of gas concentration and issues early warning messages in advance.

[0085] When it detects that the oxygen concentration is lower than the safety value or the concentration of toxic and harmful gases exceeds the standard, the service / coordinator 13 immediately triggers an alarm and sends the alarm information to the guardian alarm transceiver 14 via Wi-Fi. The guardian alarm transceiver notifies the on-site safety officer and the project manager through means such as sound, light, and screen prompts. At the same time, the alarm information is also sent to the emergency command center via text message and phone call to quickly organize rescue forces.

[0086] In this embodiment, by regularly collecting and analyzing the system operation data, the parameters and networking methods of the sensor / terminal 11 are optimized to improve the monitoring accuracy and response speed of the system. For example, according to the actual construction situation, the sampling frequency and alarm threshold of the sensor are adjusted, and the distribution and communication parameters of the ZigBee router / node 12 are optimized to ensure the stable operation of the system in a complex construction environment.

[0087] It should be understood that each part of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well-known in the art can be used: using discrete logic circuits to implement the logical functions of data signals, suitable for scenarios with high requirements for data processing and signal transmission, such as the preprocessing of sensor data and the generation of alarm signals. Implementing specific functions by designing application-specific integrated circuits, such as the acquisition, processing, and transmission of sensor data, as well as the triggering and transmission of alarm signals, suitable for large-scale production and scenarios with high performance requirements. Utilizing programmable gate arrays to achieve flexible logical function configuration, suitable for scenarios where the system functions need to be frequently adjusted and optimized, such as adjusting the alarm triggering conditions according to different construction environments and safety requirements. Using field-programmable gate arrays to achieve efficient parallel processing and flexible logical functions, suitable for scenarios with high requirements for real-time performance and flexibility, such as the real-time fusion and analysis of multi-sensor data, and the processing of alarm signals in complex environments.

[0088] Refer to Figures 1 to 6 , this embodiment provides a method for processing network alarms for falling of construction workers, including collecting the status data of construction workers and the gas concentration data of the surrounding environment through the sensor / terminal;

[0089] The collected data is transmitted to the ZigBee router / node through the ZigBee protocol, and then transmitted by the ZigBee router / node to the ZigBee service / coordinator;

[0090] The ZigBee service / coordinator processes and analyzes the data;

[0091] The guardian alarm transceiver determines whether to trigger an alarm according to the preset rules;

[0092] When it is detected that the operator has fallen, tripped, drowned, fallen into a coma or the gas concentration is abnormal, the guardian alarm transceiver issues an alarm;

[0093] The guardian alarm transceiver sends an evacuation instruction to the operator.

[0094] In this embodiment, the acceleration sensor 111 monitors the motion acceleration of the operator in real time, with a sampling frequency of 100 Hz, a measurement range of ±16 g, and a resolution of 0.001 g. When an abnormal change in acceleration is detected, such as an instantaneous increase to 10 g or a free fall state, it is determined as a fall or a trip.

[0095] The attitude sensor 112 monitors the body attitude change of the operator in real time, with a sampling frequency of 50 Hz and a measurement accuracy of ±2 degrees. When an abnormal change in body attitude is detected, such as an inclination angle exceeding 45 degrees or staying in an abnormal attitude for a long time, it is determined as a trip or drowning.

[0096] The gas sensor 113 monitors the oxygen concentration and the concentration of toxic and harmful gases around the operator in real time, with a sampling frequency of 10 Hz. The oxygen concentration measurement range is 0% to 100%, and the toxic and harmful gas concentration measurement range is 0 ppm to 1000 ppm. When the oxygen concentration is lower than 19.5% or the concentration of toxic and harmful gases is higher than the safety limit, it is determined that the gas concentration is abnormal.

[0097] The positioning module 114 monitors the location information of the operator in real time, with a sampling frequency of 1 Hz and a positioning accuracy of 5 meters. Through GPS or Bluetooth positioning technology, the longitude, latitude and altitude information of the operator is provided.

[0098] In this embodiment, the sensor / terminal 11 transmits the collected data to the nearest ZigBee router / node 12 through the ZigBee protocol. The transmission period is set to 1 second according to the application scenario and accuracy requirements to ensure real-time performance.

[0099] After receiving the data, the ZigBee router / node 12 forwards it to the ZigBee service / coordinator 13 through the ZigBee protocol. During the transmission process, the data is compressed and encrypted, and efficient compression algorithms such as the LZ77 algorithm and the AES-128 encryption algorithm are used to ensure the accuracy and confidentiality of the data.

[0100] In this embodiment, after receiving the data transmitted by the ZigBee router / node 12, the data is first unpacked and preliminarily processed to remove noise and invalid data.

[0101] The data is stored in the local database for subsequent analysis and query.

[0102] Fusion analysis is performed on the received acceleration, attitude, gas concentration, and position data. Through the mutation detection of the acceleration data, combined with the attitude change analysis of the attitude data, and the over-limit detection of the gas concentration data, a comprehensive judgment is made on whether the status of the operator is abnormal.

[0103] In this embodiment, according to the preset alarm rules, the data transmitted by the ZigBee service / coordinator 13 is monitored and analyzed in real time.

[0104] An alarm is triggered when the operator falls, stumbles, drowns, or becomes unconscious.

[0105] An alarm is triggered when the oxygen concentration at the location of the operator is lower than 19.5%.

[0106] An alarm is triggered when the concentration of toxic and harmful gases at the location of the operator is higher than the safety limit.

[0107] When any of the above situations is detected, the guardian alarm transceiver 14 immediately triggers an alarm.

[0108] In this embodiment, when an alarm is triggered, the guardian alarm transceiver 14 notifies the on-site safety officer and the project manager by means of sound, light, and screen prompts.

[0109] At the same time, the alarm information is sent to the external emergency rescue agency via Wi-Fi to ensure timely rescue.

[0110] In this embodiment, the safety officer and the project manager send evacuation instructions to the operators in this area through the guardian alarm transceiver 14. The evacuation instructions can be conveyed to the operators by means of sound, vibration, or text display to ensure that they can receive the notice in time and evacuate the dangerous area according to the predetermined route.

[0111] In summary, the network alarm system and processing method for construction workers' fall in the present invention can timely and accurately monitor the safety status of workers by collecting and analyzing the status data of workers and the environmental gas concentration data in real time. When dangerous situations such as fall, stumble, drowning, coma or abnormal gas concentration occur, it can quickly trigger an alarm and send evacuation instructions to guardians and workers, effectively improving the safety guarantee level during the construction process, reducing the risk of accident casualties. At the same time, the ZigBee and Wi-Fi wireless communication technologies and MESH networking mode adopted by the system ensure the stability and reliability of data transmission, meet the requirements of complex construction environments, and have important practical application value and broad promotion prospects.

[0112] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A network alarm system for workers falling in buildings, characterized by: include, A plurality of sensors / terminals (11), a plurality of ZigBee routers / nodes (12), at least one ZigBee server / coordinator (13), and at least one guardian alarm transceiver (14) The sensor / terminal (11) communicates with the ZigBee router / node (12) to monitor the status of the operator and the gas concentration of the environment in real time; The ZigBee router / node (12) communicates with the ZigBee server / coordinator (13) using the ZigBee protocol; The ZigBee server / coordinator (13), as the system center, is used for data processing and data distribution; The guardian alarm transceiver (14) communicates with the ZigBee service / coordinator (13) via Wi-Fi, and is used to receive alarm information and send evacuation instructions to the operating personnel.

2. A network alarm system for workers falling in a building as claimed in claim 1, characterized in that: The sensor / terminal (11) includes an acceleration sensor (111) for detecting a worker's falling, stumbling, drowning, coma, etc.; A posture sensor (112) for detecting posture changes of an operator; A gas sensor (113) for detecting oxygen concentration and toxic and harmful gas concentration; The positioning module (114) is used to monitor the position information of the operating personnel in real time.

3. A network alarm system for workers falling in a building as claimed in claim 2, characterized in that: The guardian alarm transceiver (14) comprises a group management module (141) for group management of the sensor / terminal (11); A status display module (142) is used to display the status of each person wearing the sensor / terminal (11) and the gas conditions at the location; An alarm setting module (143), used to set manual and automatic broadcast and alarm rules; A graphical user interface (144) is used to display the status, location and gas concentration information of the operator.

4. A network alarm system for workers falling in a building as claimed in claim 3, characterized in that: It also includes MESH networking, which can perform daisy chain connection, tree connection and star connection. The sensor / terminal (11) can automatically establish a connection with another ZigBee router / node (12) after losing the connection with one ZigBee router / node (12).

5. A network alarm system for workers falling in a building as claimed in claim 4, characterized in that: The alarm setting module (143) comprises an alarm triggering unit (1431) for determining whether to trigger an alarm according to a preset rule; An evacuation instruction unit (1432), used to send an evacuation instruction to the operating personnel; The alarm determination unit (1433) is used to determine whether the alarm threshold is reached.

6. A network alarm system for workers falling in a building as claimed in claim 5, characterized in that: The alarm triggering unit (1431) triggers an alarm when any of the following situations is detected: the operator falls, falls, drowns or becomes unconscious; The oxygen concentration at the operator's location is lower than the preset threshold; The concentration of toxic and harmful gases at the location where the workers are located is higher than the preset threshold.

7. A network alarm system for workers falling in a building as claimed in claim 6, characterized in that: The communication protocol between the ZigBee router / node (12) and the sensor / terminal (11) is the ZigBee protocol, and the communication protocol between the ZigBee service / coordinator (13) and the guardian alarm transceiver (14) is the Wi-Fi protocol. The system supports seamless switching between ZigBee and Wi-Fi networks.

8. A network alarm system for workers falling in a building as claimed in claim 7, characterized in that: The guardian alarm transceiver (14) can set different alarm rules according to the operation content and area, and display the status, location and gas concentration information of the operator through the graphical user interface (144).

9. A network alarm system for workers falling in a building as claimed in claim 8, characterized in that: The alarm determination unit (1433) determines whether to trigger an alarm according to a preset rule by the guardian alarm transceiver; The guardian alarm transceiver monitors the status of operators and gas concentration data in real time.

10. A method for processing a network alarm system for a worker falling in a building, comprising the following steps: Collect the operator's status data and the gas concentration data of the environment through sensors / terminals; The collected data is transmitted to the ZigBee router / node through the ZigBee protocol, and then transmitted to the ZigBee server / coordinator by the ZigBee router / node; The ZigBee server / coordinator processes and analyzes the data; The guardian alarm transceiver determines whether to trigger an alarm based on preset rules; When it is detected that the operator has fallen, fallen, drowned, or is unconscious, or the gas concentration is abnormal, the guardian alarm transceiver will sound an alarm; The guardian alarm transceiver sends evacuation instructions to the operating personnel.

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