CN215195125U

CN215195125U - Safety belt monitoring device

Info

Publication number: CN215195125U
Application number: CN202120040282.3U
Authority: CN
Inventors: 南晓斌; 傅治顺; 王坤; 刘巧玲
Original assignee: Chengdu Vast Measurement And Control Technology Co ltd
Current assignee: Chengdu Vast Measurement And Control Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-12-17
Anticipated expiration: 2031-01-08

Abstract

A safety belt monitoring device comprises a monitoring host and a monitoring slave, wherein the monitoring host and the monitoring slave are respectively provided with a wireless transmission module capable of communicating with each other, the monitoring slave comprises a shell and a safety belt buckle positioned outside the shell, a slave monitoring circuit is arranged in the shell, and the slave monitoring circuit comprises a single chip microcomputer, a gyroscope sensor connected with the single chip microcomputer, a wireless transmission module and a slave clock module. Adopt the utility model discloses safety belt monitoring device's advantage lies in: 1. the equipment is small in size, self batteries are adopted for power supply, and equipment can be easily fixed at the designated position of the safety belt by utilizing the equipment buckle. 2. The module is internally provided with a voltage stabilizing circuit, and can be compatible with a 3.3V/5V embedded system. 3. By adopting an advanced digital filtering technology, the measurement noise can be effectively reduced, and the measurement precision is improved. 4. By using the ISM frequency range Lora spread spectrum chip, the wireless communication between the host and the slave can be realized within the range of 2 KM.

Description

Safety belt monitoring device

Technical Field

The utility model belongs to the technical field of the electron, a safe electronic equipment is related to, concretely relates to safety belt monitoring device.

Background

The high-altitude operation refers to the operation of an operator above a certain height of a falling reference surface. The safety belt can hold the operating personnel when the operating personnel fall, so that the operating personnel can be prevented from being injured, and at least the life can not be threatened. However, many workers have been in use for work at high altitudes without wearing safety belts as intended by mistake.

At present, the adherence of construction workers to the rules of wearing safety belts during aloft work depends on the self-awareness of the workers, the management and the reminding of field safety workers, or some economic penalty rules of illegal work are added. However, these problems cannot be solved thoroughly, such as carelessness of operators, luck existence, blind spot of safety management system execution, and the like.

SUMMERY OF THE UTILITY MODEL

For the technical defect who overcomes prior art existence, the utility model discloses a safety belt state monitoring device.

Safety belt monitoring device, follow the machine including control host computer and control, but the two possesses a wireless transmission module of intercommunication separately, the control is followed the machine and is included the casing and be located the outer safety belt buckle of casing, be provided with in the casing from machine monitoring circuit, follow machine monitoring circuit and include singlechip, gyroscope sensor, wireless transmission module, the singlechip still is connected with from the machine clock module, gyroscope sensor installs on the couple of safety belt.

Preferably, the casing is including holding the chamber, install on holding the PCB board of intracavity from machine monitoring circuit, the casing top is provided with the battery case, and the lateral wall that holds the chamber is provided with first recess, the control is from the machine still includes the safety belt buckle, the safety belt buckle be provided with first recess form fit's second recess, first recess and second recess cooperation form the safety belt buckle.

Preferably, the accommodating cavity is provided with a cover plate, a switch button is installed on the cover plate, and the switch button is electrically connected with the PCB and used for controlling the power on and power off of the monitoring system.

Preferably, the safety belt buckle plate is connected with the side wall of the accommodating cavity provided with the first groove through a plurality of bolts.

Preferably, an antenna hole is formed in the bottom of the accommodating cavity, and a radio frequency antenna is connected to a wireless transmission module of the monitoring slave and extends out of the antenna hole.

Preferably, the wireless transmission module is a Lora spread spectrum chip.

Preferably, the gyro sensor is an MPU9250,

adopt the safety belt monitoring device's advantage lies in: 1. the equipment is small in size, self batteries are adopted for power supply, and equipment can be easily fixed at the designated position of the safety belt by utilizing the equipment buckle. 2. The module is internally provided with a voltage stabilizing circuit, and can be compatible with a 3.3V/5V embedded system. 3. By adopting an advanced digital filtering technology, the measurement noise can be effectively reduced, and the measurement precision is improved. 4. By using the ISM frequency range Lora spread spectrum chip, the wireless communication between the host and the slave can be realized within the range of 2 KM.

Drawings

Fig. 1 is a schematic view of a monitoring slave of the safety belt monitoring device according to an embodiment of the present invention;

fig. 2 is a schematic side view of an embodiment of the safety belt monitoring device according to the present invention;

the reference numbers in the figures refer to: 1-shell, 2-PCB, 3-safety belt buckle, 4-cover plate, 5-battery box, 6-radio frequency antenna, 7-button, 8-bolt, 9-battery box cover.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings 1 to 2.

Safety belt monitoring device, follow the machine including control host computer and control, but the two possesses a wireless transmission module of intercommunication separately, the control is followed the machine and is included casing 1 and be located the outer safety belt buckle of casing, be provided with from machine monitoring circuit in the casing, follow machine monitoring circuit and include singlechip and rather than signal connection's gyroscope sensor wireless transmission module, the singlechip still is connected with from the machine clock module, gyroscope sensor installs on the couple of safety belt.

The utility model discloses mainly when the workman is at high altitude construction, whether the safety belt has firmly reliable hanging on the workman's health, correct operation during the use is that the operation personnel passes the safety belt buckle with the safety belt and firmly hangs, and the safety belt another firmly ties on the fixture such as building top etc. ground to wear the machine from the machine of will monitoring on one's body, open the power of the machine of monitoring and make from the normal work of machine monitoring circuit.

When workers work aloft, according to the actual state on site, the safety belt hook takes the contact part of the hook and the hanging rope as the center, the safety hook belongs to a normal state within the angle range of 85 degrees of the spatial vertical angle, and the rest angles are in a non-hanging state. The device calculates whether the safety belt hook is hung or not through the angle change of the safety hook, after the safety belt monitoring slave machine is electrified, one frame of data is sent to the safety belt monitoring host machine at a certain baud rate every 10ms, each frame of data comprises three data packets which are respectively an acceleration packet, an angular velocity packet and an angle packet, and the three data packets are sequentially output. In the invention, only the angle packet is analyzed, the FPGA/smt32 controller takes the angle packet out of each frame of data, and the data information is transmitted to the monitoring host through the wireless module, thereby realizing the remote real-time monitoring of the safety belt.

After receiving the data sent by the gyroscope sensor, the single chip microcomputer packages the data and sends the data to the monitoring host through the wireless transmission module, monitoring personnel can directly observe the angle posture change information of the safety belt of each monitoring slave on a display of the monitoring host, and if the angle posture of the sensor does not change for a long time or the angle posture of the sensor does not accord with the angle range set by the normal hanging of the hook, the situation that the safety belt is not hung or the safety belt is not stressed can be presumed.

The utility model discloses in a concrete structure and the intercommunication mode of control host computer and control slave computer are shown in fig. 2, and wireless transmission module can select ISM frequency channel Lora spread spectrum chip for example sx1276 that Semtech company released, can realize the host computer at the 2KM within range and follow the wireless communication between the computer. The single chip microcomputer can use an FPGA or stm32 series single chip microcomputer or other MCU.

Fig. 1 shows a specific embodiment of the monitoring slave machine, the housing of the monitoring slave machine comprises an accommodating cavity, the monitoring circuit of the slave machine is mounted on a PCB 2 in the accommodating cavity of the PCB, a battery box 5 is arranged above the accommodating cavity, a first groove is arranged on a side wall of the accommodating cavity, the monitoring slave machine further comprises a safety belt buckle plate 3, and the safety belt buckle plate is provided with a second groove matched with the first groove in shape. The first groove and the second groove are matched to form the safety belt buckle, the safety belt penetrates through the safety belt buckle and then is buckled reversely to enable the safety belt to be firmly fixed on the monitoring machine, and the safety belt buckle is compact in structure, small in size and convenient to carry. The safety belt buckle plate and the side wall of the containing cavity provided with the first groove can be connected through a plurality of bolts 8.

In the specific embodiment shown in fig. 2, the accommodating cavity has a cover plate 4, a button 7 is mounted on the cover plate 4, the button 7 is electrically connected with the PCB 2, and an operator can conveniently open the monitoring slave machine through the button.

An antenna hole is formed in the bottom of the accommodating cavity, a radio frequency antenna is connected to a wireless transmission module of the monitoring slave machine, and the radio frequency antenna 6 extends out of the antenna hole. The monitoring slave machine is generally worn on the waist, the antenna hole is formed in the bottom of the accommodating cavity, and the antenna extends downwards, so that the waist movement of an operator cannot be influenced, and the antenna is prevented from being knocked and loosened.

In the foregoing, the preferred embodiments of the present invention, if not obviously contradictory or based on a certain preferred embodiment, can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, the patent protection scope of the present invention is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The safety belt monitoring device is characterized by comprising a monitoring host and a monitoring slave, wherein the monitoring host and the monitoring slave are respectively provided with a wireless transmission module capable of communicating with each other, the monitoring slave comprises a shell and a safety belt buckle positioned outside the shell, a slave monitoring circuit is arranged in the shell, the slave monitoring circuit comprises a single chip microcomputer, a gyroscope sensor and a wireless transmission module, the single chip microcomputer is further connected with a slave clock module, and the gyroscope sensor is installed on a hook of a safety belt.

2. The safety belt monitoring device as claimed in claim 1, characterized in that the housing (1) comprises a receiving cavity, the slave monitoring circuit is mounted on the PCB (2) in the receiving cavity, a battery box (5) is arranged above the housing, a first groove is arranged on a side wall of the receiving cavity, the monitoring slave further comprises a safety belt buckle (3) which is provided with a second groove matched with the first groove in shape, and the first groove and the second groove are matched to form the safety belt buckle.

3. The safety belt monitoring device as claimed in claim 2, characterized in that the receiving chamber has a cover plate (4) on which a push button (7) is mounted, said push button being electrically connected to the PCB board.

4. The safety belt monitoring device as claimed in claim 2, characterized in that the connection between the safety belt buckle (3) and the side wall of the receiving space provided with the first recess is provided by means of a plurality of bolts (8).

5. The safety belt monitoring device as claimed in claim 2, characterized in that an antenna hole is formed in the bottom of the receiving chamber, and a radio frequency antenna (6) is connected to the wireless transmission module of the monitoring slave and extends from the antenna hole.

6. The seatbelt monitoring device according to claim 1, wherein the wireless transmission module is a Lora spread spectrum chip.

7. The seatbelt monitoring device of claim 1, wherein the gyro sensor is an MPU 9250.