CN103258405A - Portable SF6 device gas leakage and abnormality voice recognition warning device - Google Patents

Abstract

The invention relates to a portable SF6 equipment gas leakage and abnormal voice recognition alarm device, which belongs to the technical field of electric power industry. It is equipped with a power switch on the casing, a detection sensor is provided on the top of the casing, the upper part of the casing is a circuit board, and the lower part of the circuit board is a battery clip; the circuit board is provided with a voice chip, voice output, power supply, the first A digital-to-analog conversion device, a central processing unit, and a second digital-to-analog conversion device; wherein the detection sensor, voice chip, power supply, the first digital-to-analog conversion device, and the second digital-to-analog conversion device are all connected to the central processing unit, and the voice outputs are respectively Connect with voice chip and buzzer. The invention can make up for the dead angle of equipment operation and give a warning function, and has a simple structure and is flexible and convenient to use. It can set the standard value under different working environment conditions, and give prompts and accurate judgments to the staff on the job site, keep a sufficient safe distance from the working environment, and ensure the safe operation of people and equipment.

Description

Portable SF6 equipment gas leakage and abnormal voice recognition alarm device

technical field

The invention relates to a portable SF6 equipment gas leakage and abnormal voice recognition alarm device, which belongs to the technical field of electric power industry. Aiming at the conditions of existing equipment technology, it provides a voice recognition and prompt alarm device to prevent SF6 gas leakage and scorched gas generated by abnormal temperature of closed equipment in substation operating equipment indoors or in the indoor environment of closed combined electrical appliances.

Background technique

At present, with the improvement of the automation and modernization level of power equipment, combined electrical appliances with SF6 as insulating gas and various closed switchgear forms with built-in vacuum insulation equipment have already replaced open mechanical equipment with less oil, but due to the use of combined electrical appliances And various closed switch cabinets with built-in vacuum insulation equipment are more concealed, and the abnormal phenomenon of equipment aging is not easy to be discovered, which leads to the problem of delaying or expanding gas leakage, which is a great threat to power. System operation and maintenance, staff life and equipment safety. Therefore, it is especially important to invent a kind of this voice recognition prompting alarm device. the

Contents of the invention

The present invention aims at the problems existing in the above-mentioned prior art, and provides a portable SF6 equipment gas leakage and abnormal voice recognition and alarm device. Its purpose is to prevent SF6 gas leakage and scorching gas generated by abnormal temperature of closed equipment in substation operating equipment indoors or in the indoor environment of closed combined electrical appliances.

The technical solution adopted by the present invention to solve its technical problems is:

The portable SF6 equipment gas leakage and abnormal voice recognition alarm device is equipped with a power switch on the casing, a detection sensor is installed on the top of the casing, the upper part of the casing is a circuit board, and the lower part of the circuit board is a battery clip; There are voice chip, voice output, power supply, first digital-to-analog conversion device, central processing unit, and second digital-to-analog conversion device; wherein the detection sensor, voice chip, power supply, first digital-to-analog conversion device, and second digital-to-analog conversion device are all It is connected with the central processing unit, and the voice output is respectively connected with the voice chip and the buzzer.

The buzzer can be replaced by a loudspeaker.

The detection sensors include gas sensors and temperature sensors.

Portable SF6 equipment gas leakage and abnormal voice recognition and alarm method, including five parts: detection concentration detection module, detection device module, single-chip control circuit module, voice chip module, and local voice alarm module; the power supply module transmits power to the single-chip central control processing module The information collected by the gas sensor and the temperature sensor is transmitted to the concentration detection module, and then the concentration detection module detects the received gas and temperature concentration change information, and then sends the detection results to the single-chip central control processing module, and then The detection results are processed by the single-chip central control processing module and transmitted to the voice chip module. The voice chip module recognizes the received detection results, stores and converts the information, and then transmits it to the local voice alarm module; The processing result will send out a voice prompt or an alarm through a voice speaker or a buzzer.

The detection device module includes a detection sensor; the voice chip module includes identification, information storage and conversion processing; the local voice alarm module includes a circuit.

The beneficial effects of the present invention are:

The invention can make up for the dead angle of equipment operation and warn in the actual work of safe production, and has a simple structure and is flexible and convenient to use. In a certain working environment, the standard value under different working environment conditions can be set, and the detection sensor can be used to detect whether the work site meets the work requirements of the work site, and give prompts and accurate judgments to the work site staff to maintain a sufficient safety distance from the work environment , so as not to cause unnecessary harm. It has the remarkable characteristics of convenient movement and strong practicability, which is beneficial to the analysis and judgment of the working environment for emergency accidents or defect handling.

The present invention also has the function of speech recognition. When the gas alarm device detects that the gas concentration or temperature reaches the set critical point, the alarm device will send out an alarm signal to remind the on-site maintenance patrol and operation staff to take safety measures, and Exhaust the air and cut off the system in time to prevent explosions, fires, and poisoning accidents, thereby ensuring the safe operation of people and equipment.

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a block diagram of the workflow of the present invention.

In the figure: shell 1, power switch 2, detection sensor 3, voice chip 4, voice output 5, power supply 6, battery clip 7, first digital-to-analog conversion device 8, central processing unit 9, second digital-to-analog conversion device 10, buzzer11.

Detailed ways

Example 1:

As shown in Figure 1, the present invention is a portable SF6 equipment gas leakage and abnormal voice recognition alarm device. It is a gas detection voice recognition prompt alarm device that prevents SF6 gas leakage and scorching caused by abnormal temperature in the substation operating equipment in the indoor environment. In the present invention, a power switch 2 is arranged on the casing 1 , a detection sensor 3 is arranged on the top of the casing 1 , the upper part of the casing 1 is a circuit board, and the lower part of the circuit board is a battery clip 7 . Described circuit board is provided with voice chip 4, voice output 5, power supply 6, the first digital-to-analog conversion device 8, central processing unit 9, the second digital-to-analog conversion device 10. Wherein detection sensor 3, voice chip 4, power supply 6, the first digital-to-analog conversion device 8, the second digital-to-analog conversion device 10 are all connected with central processing unit 9, voice output 5 is respectively with voice chip 4 and buzzer 11 again connected. The alarm device of the present invention can also be a hand-held structure.

As shown in Fig. 2, the present invention mainly comprises: five parts such as detection concentration detection module, detection device module, single-chip microcomputer control circuit module, voice chip module, local voice alarm module.

The detection device module includes optical devices such as detection sensors; the voice chip module includes identification, information storage and conversion processing; the local voice alarm module includes circuits.

Work process of the present invention is as follows:

The power supply is delivered to the single-chip central control processing module by the power supply 6; the information collected by the detection sensor is transmitted to the concentration detection module, and then the concentration detection module detects the received gas and temperature concentration and abnormal change information, and then detects The results are sent to the central control processing module of the single-chip microcomputer, and then the central control processing module of the single-chip microcomputer processes the detection results and transmits them to the voice chip module. Alarm module; the local voice alarm module sends voice prompts or alarms to the received processing results through voice speakers or buzzers.

Among them, the detection device module: including the detection sensor 3 (gas and temperature), including an optical device, which can realize the transmission function of the information processing of the concentration and temperature detection module.

The principle of the invention is to detect the concentration and abnormal changes of the corresponding strong and weak gases and temperature by using the intensity of the infrared spectrum detection technology, and set the alarm through the detection sensor and other information according to the strong and weak amplitude detection settings.

It can detect and display the concentration and abnormal changes of gas and temperature in real time, and the information of alarm concentration and abnormal changes can be set on site as required.

Gas monitoring and alarm system alarm output, when the content of charred gas generated by SF6 gas or abnormal temperature of the equipment reaches the alarm concentration, it will give a voice alarm.

Infrared sensor and voice alarm and reminder of gas monitoring and alarm system: If a staff member approaches the switch room, the infrared sensor in the operation control panel is triggered, and the voice prompt will be activated to notify the staff whether there is SF6 or abnormal alarm in the current room, and After the prompt is set, you should start the voice prompt (in the entered language), fan ventilation, etc., and then enter.

The alarm is automatically turned off within a certain period of time after it is started; the technical indicators of the gas detection alarm system include: concentration detection, temperature, humidity, working power supply voltage, and working environment. the

The technical indicators of the gas detection and alarm system are as follows:

1. Concentration detection:

Detection range: ≥100uL/L (ie ppm);

  Detection accuracy: ±10uL/L;

Detection speed: ≤2 minutes (measurement distance of 30 meters);

 Detection method: use the standard gas provided by the National Standard Material Research Center, which is mixed with air and SF6 gas;

2. Temperature:

Detection range: -40～60℃;

Detection accuracy: ≤2°C;

3. Humidity:

Detection range: 0~100% RH;

Detection accuracy: ≤5%;

4. Working power supply: AC 150V～265V;

5. Working environment: Operation control -40～60℃.

Claims (5)

1. portable SF6 equipment gas leaks and abnormal speech identification warning device, it is characterized in that: shell (1) is provided with power switch (2), shell (1) top is provided with acquisition sensor (3), and shell (1) internal upper part is divided into circuit board, and the circuit board bottom is battery folder (7); Described circuit board is provided with speech chip (4), voice output (5), power supply (6), first digiverter (8), central processing unit (9), second digiverter (10); Wherein acquisition sensor (3), speech chip (4), power supply (6), first digiverter (8), second digiverter (10) all are connected with central processing unit (9), and voice output (5) is connected with speech chip (4) and hummer (11) respectively again.

2. portable SF6 equipment gas according to claim 1 leaks and abnormal speech identification warning device, and it is characterized in that: described hummer (11) can substitute with loudspeaker.

3. portable SF6 equipment gas according to claim 1 leaks and abnormal speech identification alarm method, and it is characterized in that: described acquisition sensor comprises gas sensor (3) and temperature sensor.

4. portable SF6 equipment gas leaks and abnormal speech identification alarm method, it is characterized in that: comprise detectable concentration detection module, pick-up unit module, single chip machine controlling circuit module, speech chip module, local voice alarm module five parts;

Give single-chip microcomputer central authorities control processing module by power module with power delivery; By gas sensor and temperature sensor the information of gathering is transferred to the concentration detection module, by the concentration detection module gas that receives, the concentration change information of temperature are detected again, afterwards testing result is delivered to the control processing module to single-chip microcomputer central authorities, testing result is handled and is transferred to the speech chip module by single-chip microcomputer central authorities control processing module again, the speech chip module is identified, is transferred to the local voice alarm module after the information storage conversion process the testing result that receives; The local voice alarm module passes through voice loudspeaker or hummer to the result that receives, and sends voice suggestion or warning.

5. portable SF6 equipment gas according to claim 4 leaks and abnormal speech identification alarm method, and it is characterized in that: described pick-up unit module comprises acquisition sensor; The speech chip module comprises identification, information storage conversion process; The local voice alarm module comprises circuit.

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