CN204207156U - Electric power multifunctional monitoring safety helmet with alarm - Google Patents

Abstract

The utility model relates to a multifunctional monitoring and alarm safety helmet for electric power, which belongs to the technical field of electric power safety monitoring. According to the technical solution provided by the utility model, the multifunctional monitoring and alarm helmet for electric power includes a helmet body; an electric field induction antenna for sensing power frequency alternating current electric field signals and an electric field induction antenna for collecting work are arranged on the helmet body. An environmental sensor for environmental information, the electric field induction antenna and the environmental sensor are all connected to the control processing circuit on the helmet body, and the output end of the control processing circuit is connected to the alarm on the helmet body; when the electric field signal induced by the electric field induction antenna Or when the environmental information collected by the environmental sensor does not match the preset safety threshold in the control processing circuit, the control processing circuit outputs alarm information through the alarm. The utility model is compact in structure, easy to wear and use, can effectively monitor and timely alarm the situation during electric power operation, and improves the safety and reliability of electric power operation.

Description

Multifunctional monitoring and alarm safety helmet for electric power

technical field

The utility model relates to a safety helmet, in particular to a multifunctional monitoring and alarming safety helmet for electric power, which belongs to the technical field of electric power safety monitoring.

Background technique

At present, the staff at the power system operation site must wear safety helmets. The existing safety helmets generally use traditional ABS engineering plastic safety helmets without various intelligence and detection functions. The staff at the power system operation site have near-electric alarm watches for the workers to use. Since there is no mandatory use of near-electric alarm watches in the "Safety Regulations" of the electric power, the degree of wearing them is not high. In addition, some substation high-pressure rooms are equipped with SF6 gas detection and air oxygen content detection devices. When the SF6 content exceeds the standard, a "gas SF6 leakage alarm" signal is issued. However, because it is assembled in a fixed location, it cannot cover all potentially dangerous areas.

In the work of power maintenance or power distribution operation, the staff often need to deal with live equipment. Although the staff has received professional training, accidents cannot be avoided. Various electric shock accidents and other accidents often occur in the national power grid , cannot be eliminated. The power industry is in urgent need of a wearable safety device that can remind workers in all directions anytime and anywhere.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a multifunctional monitoring and alarm safety helmet for electric power. Safety and reliability of electrical work.

According to the technical solution provided by the utility model, the multifunctional monitoring and alarm helmet for electric power includes a helmet body; an electric field induction antenna for sensing power frequency AC electric field signals and an electric field induction antenna for collecting work are arranged on the helmet body. An environmental sensor for environmental information, the electric field induction antenna and the environmental sensor are all connected to the control processing circuit on the helmet body, and the output end of the control processing circuit is connected to the alarm on the helmet body; when the electric field signal induced by the electric field induction antenna Or when the environmental information collected by the environmental sensor does not match the preset safety threshold in the control processing circuit, the control processing circuit outputs alarm information through the alarm device.

Three electric field induction antennas are arranged on the helmet body, and the electric field induction antenna is located at the top of the helmet body. The environmental sensor includes a sulfur hexafluoride gas sensor, and the sulfur hexafluoride gas sensor is located on the brim of the helmet body.

The alarm adopts a loudspeaker.

The control processing circuit includes a data processor, and the electric field induction antenna is connected with the data processor through a signal amplifying circuit; the signal amplifying circuit includes an operational amplifier U1, the inverting end of the operational amplifier U1 is grounded, and the non-inverting end of the operational amplifier U1 is connected to the resistor R1. One end, the moving end of the adjustable resistor R2 and one static end of the adjustable resistor R2 are connected, the other static end of the adjustable resistor R2 is connected to the output end of the operational amplifier U1, and the output end of the operational amplifier U1 is connected to the AD module connection.

A pressure switch and a manual switch are provided in the safety helmet, and the manual switch is connected in parallel with the pressure switch; one end of the pressure switch is connected to the positive pole of the power supply, the other end is connected to the control processing circuit, and the negative pole of the power supply is connected to the control processing circuit.

The sulfur hexafluoride gas sensor is connected with the control processing circuit through the 485 bus.

The utility model has the advantages that an electric field induction antenna and a sulfur hexafluoride gas sensor are arranged on the helmet body, and the electric field signal of the high-voltage electric field at the work site is sensed by the electric field induction antenna, and the six gases at the work site are detected by the sulfur hexafluoride gas sensor. Sulfur fluoride gas value, the control processing circuit can alarm through the alarm according to the detected electric field signal or the relationship between the sulfur hexafluoride gas value and the preset safety threshold. Carry out effective monitoring and timely alarm to improve the safety and reliability of power operations.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the schematic circuit diagram of the utility model.

Explanation of reference numerals: 1-safety helmet body, 2-electric field induction antenna, 3-sulfur hexafluoride gas sensor, 4-alarm, 5-control processing circuit, 6-data processor and 7-signal amplifying circuit.

Detailed ways

Below in conjunction with specific accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1: in order to effectively monitor and timely alarm the situation during electric power work, and improve the safety and reliability of electric power work, the utility model includes a safety helmet body 1; The electric field induction antenna 2 for inductive power frequency alternating current electric field signal and the environment sensor for collecting the working environment information, the electric field induction antenna 2 and the environment sensor are all connected with the control processing circuit 5 on the safety helmet body 1, the control processing circuit 5 The output end of the safety helmet body 1 is connected to the alarm 4; when the electric field signal induced by the electric field induction antenna 2 or the environmental information collected by the environmental sensor does not match the preset safety threshold in the control processing circuit 5, the control processing circuit 5 The alarm information is output through the alarm device 4 .

Specifically, the safety helmet body 1 adopts the same structure as the existing safety helmet, so as to be worn by on-site personnel. The electric field signal of the high voltage electric field at the work site can be sensed by the electric field induction antenna 2, and the environmental parameters affecting the safety of the work site are collected through the environmental sensor, and the safety threshold is preset in the control processing circuit 5, and the safety threshold includes a safety voltage. thresholds and thresholds for the security environment.

The mismatch between the electric field signal induced by the electric field induction antenna 2 and the preset safety threshold in the control processor 5 means that the electric field signal induced by the electric field induction antenna 2 is not within the range of the preset safety threshold in the control processor 5, and the control processor 5 can The site voltage is determined to be dangerous. The environmental information collected by the environmental sensor does not match the preset safety threshold in the control processor 5, which means that at least one piece of environmental information in the environmental signal collected by the environmental sensor is not within the preset safety threshold of the control processor 5. At this time, the control processor 5. It is determined that the environmental parameters of the working environment site are dangerous. During specific implementation, no matter the electrical field signal or the environmental parameters cause potential safety hazards at the work site, the control processor 5 will pass the alarm 4 to remind the site staff.

Further, three electric field induction antennas 2 are arranged on the helmet body 1 , and the electric field induction antennas 2 are located at the top of the helmet body 1 . The three electric field induction antennas 2 on the helmet body 1 are used to obtain the 50Hz power frequency AC electric field in the X, Y and Z axis directions of space.

The environmental sensor includes a sulfur hexafluoride gas sensor 3 , and the sulfur hexafluoride gas sensor 3 is located on the brim of the safety helmet body 1 . In a specific implementation, the sulfur hexafluoride gas sensor 3 can adopt the smc-sf6 sensor of the German smartGAS company, and the sulfur hexafluoride gas sensor is connected to the control processing circuit 5 through the 485 bus. Of course, when it is necessary to detect other environmental parameters of the work site, the environmental sensor needs to be a corresponding sensor structure.

Described alarm 4 adopts loudspeaker. In the embodiment of the utility model, the alarm device 4 can also adopt other alarm forms, such as sound and light alarm, etc., as long as it can effectively remind the on-site staff, which is well known to those skilled in the art, and will not be repeated here.

As shown in FIG. 2 , the control processing circuit 5 includes a data processor 6 and a battery pack for providing working power, that is, the power source is in the form of a battery pack. The electric field induction antenna 2 is connected with the data processor 6 through the signal amplifying circuit 7; the signal amplifying circuit includes an operational amplifier U1, the inverting terminal of the operational amplifier U1 is grounded, the non-inverting terminal of the operational amplifier U1 is connected to one end of the resistor R1, and one end of the adjustable resistor R2 The moving end is connected to one static end of the adjustable resistor R2, the other static end of the adjustable resistor R2 is connected to the output end of the operational amplifier U1, and the output end of the operational amplifier U1 is connected to the AD module in the data processor 6.

Wherein, Fig. 2 only shows the connection between one electric field induction antenna 2 and the data processor 6, and the data processor 6 may adopt an existing commonly used microprocessor, such as a single chip microcomputer and the like. The inverting end of the operational amplifier U1 and the other end of the resistor R1 are used to connect with the electric field induction antenna 2. The electric field induction antenna 2 can adopt a structure similar to a capacitor, and the specific implementation structure of the electric field induction antenna 2 is also well known to those skilled in the art. I won't repeat them here. The voltage input to the data processor 6 can be adjusted through the adjustable resistor R2, and the data processor 6 performs digital filtering to retain the 50 Hz electric field signal. The data processor 6 compares the received voltage signal with a preset voltage safety threshold, and when the voltage signal exceeds the preset voltage safety threshold, the data processor 6 can give an alarm through the alarm 4 . In the embodiment of the present invention, the preset voltage safety threshold can be determined according to different work sites.

The safety helmet body 1 is provided with a pressure switch S1 and a manual switch S2, the manual switch S2 is connected in parallel with the pressure switch S1; one end of the pressure switch S1 is connected to the positive pole of the power supply, and the other end is connected to the control processing circuit 5, and the power supply The negative electrode is connected to the control processing circuit 5 .

In the embodiment of the utility model, when the safety helmet body 1 is worn on the staff, the pressure switch S1 is automatically turned on and closed, so that the entire safety helmet enters the working state, that is, only when the pressure switch S1 is closed, the entire safety helmet body 1 In order to monitor electric field signals and environmental signals. When the safety helmet body 1 is taken off, the pressure switch S1 is automatically disconnected, thereby prolonging the service life of the battery. Manual switch S2 is used for manually setting parameters or adjusting and debugging.

The safety helmet body 1 of the utility model is provided with an electric field induction antenna 1 and a sulfur hexafluoride gas sensor 3. The electric field induction antenna 1 is used to sense the electric field signal of the high-voltage electricity at the work site, and the work site is detected through the sulfur hexafluoride gas sensor 3. Sulfur hexafluoride gas value, the control processing circuit 5 can give an alarm through the alarm 4 according to the detected electric field signal or the relationship between the sulfur hexafluoride gas value and the preset safety threshold. The situation during operation is effectively monitored and timely alarmed to improve the safety and reliability of electric power operations.

Claims (7)

1. an electric power multifunctional monitoring safety helmet with alarm, comprises safety cap body (1); It is characterized in that: in the upper setting of described safety cap body (1) for responding to the electric field induction antenna (2) of industrial-frequency alternating current electric field signal and the environmental sensor for collecting work environmental information, described electric field induction antenna (2), environmental sensor are all connected with the control treatment circuit (5) in safety cap body (1), and the output of control treatment circuit (5) is connected with the alarm (4) in safety cap body (1); When the electric field signal that electric field induction antenna (2) is responded to or the environmental information that environmental sensor gathers are not mated with the preset security threshold value in control treatment circuit (5), control treatment circuit (5) is by alarm (4) output alarm information.

2. electric power multifunctional monitoring safety helmet with alarm according to claim 1, is characterized in that: described safety cap body (1) is arranged three electric field induction antennas (2), electric field induction antenna (2) is positioned at the top of safety cap body (1).

3. electric power multifunctional monitoring safety helmet with alarm according to claim 1, is characterized in that: described environmental sensor comprises sulfur hexafluoride gas sensor, and described sulfur hexafluoride gas sensor is positioned on the shade of safety cap body (1).

4. electric power multifunctional monitoring safety helmet with alarm according to claim 1, is characterized in that: described alarm (4) adopts loudspeaker.

5. electric power multifunctional monitoring safety helmet with alarm according to claim 1, it is characterized in that: described control treatment circuit (5) comprises data processor (6), and electric field induction antenna (2) is connected with data processor (6) by signal amplification circuit (7); Signal amplification circuit comprises operational amplifier U1, the end of oppisite phase ground connection of operational amplifier U1, the in-phase end of operational amplifier U1 is connected with the moved end of one end of resistance R1, adjustable resistance R2 and a quiet end of adjustable resistance R2, another quiet end of adjustable resistance R2 is connected with the output of operational amplifier U1, and the output of operational amplifier U1 is connected with the A/D module in data processor (6).

6. electric power multifunctional monitoring safety helmet with alarm according to claim 1, is characterized in that: be provided with pressure switch (S1) and hand switch (S2) in described safety cap body (1), described hand switch (S2) is in parallel with pressure switch (S1); One end of pressure switch (S1) is connected with the positive pole of power supply, and the other end is connected with control treatment circuit (5), and the negative pole of power supply is connected with control treatment circuit (5).

7. electric power multifunctional monitoring safety helmet with alarm according to claim 3, is characterized in that: described sulfur hexafluoride gas sensor is connected with control treatment circuit (5) by 485 buses.