Bidirectional communication alarm device for large hydropower station equipment

Abstract

A two-way communication alarm device for large hydropower station equipment relates to the technical field of communication alarm and comprises a shell, a loudspeaker is arranged on the front face of the shell, and a permanent magnet is arranged on the back face of the shell. A lithium battery, a radar module, a gyroscope, a circuit board and an infrared receiver are arranged in the shell, and the lithium battery is electrically connected with the radar module, the gyroscope, the circuit board and the loudspeaker; the radar module, the gyroscope and the infrared receiver are electrically connected with an input port of the circuit board respectively, and an output port of the circuit board is electrically connected with the radar module and the loudspeaker respectively; the device can remind operators in time during equipment maintenance, and is low in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of communication alarm, in particular to a two-way communication alarm device for large hydropower station equipment. Background Art

[0002] A large hydropower station refers to a hydropower station with a total installed capacity of more than 2.5 million kilowatts. For a large hydropower station, there are a large number of related equipment, resulting in a wide cross-operation area during the overhaul of hydropower station equipment. During the overhaul period, the flow of operating personnel is complex, which is likely to cause the malfunction of equipment and the situation that operating personnel enter the test area by mistake. Eventually, it may affect the overhaul results, damage the equipment to be overhauled or pose a personal danger to the operating personnel.

[0003] Traditionally, means such as manual inspection, on-site long-term duty and setting static signs are adopted to warn and remind operating personnel. However, these methods all have a certain lag caused by untimely response, and the reminder accuracy is relatively low. There will still be situations where operating personnel malfunction the equipment or enter the experimental area by mistake.

[0004] Chinese Patent (CN220752824U) discloses a radar area warning and anti-intrusion alarm system, which reminds and alarms vehicles entering the area by setting up a radar scanning area. However, this alarm system needs to continuously scan, resulting in high energy consumption.

[0005] Therefore, we propose an alarm device that can timely remind operating personnel during equipment overhaul and has low energy consumption. Summary of the Utility Model

[0006] In order to overcome the deficiencies in the background art, the utility model discloses a two-way communication alarm device for large hydropower station equipment.

[0007] To achieve the above invention purpose, the utility model adopts the following technical scheme:

[0008] A two-way communication alarm device for large hydropower station equipment includes a housing. A loudspeaker is arranged on the front of the housing, and a permanent magnet is arranged on the back of the housing.

[0009] A lithium battery, a radar module, a gyroscope, a circuit board and an infrared receiver are arranged in the housing, and the lithium battery is electrically connected to the radar module, the gyroscope, the circuit board and the loudspeaker respectively.

[0010] The radar module and the gyroscope are respectively electrically connected to an input port of the circuit board, and the output ports of the circuit board are respectively electrically connected to the radar module and the loudspeaker.

[0011] Preferably, an opening corresponding to the infrared receiver is arranged on the front of the housing.

[0012] Preferably, the circuit board includes a power supply circuit, a main control chip, a wireless chip, and an audio chip. The power supply circuit is connected to the lithium battery and is used to convert the output voltage of the lithium battery into a low voltage and output it to the main control chip.

[0013] The input pins of the main control chip are respectively electrically connected to the radar module, the gyroscope, and the infrared receiver, and the output pins of the main control chip are respectively electrically connected to the wireless chip and the audio chip.

[0014] The output pin of the wireless chip is signal-connected to the monitoring system of the hydropower station device.

[0015] The output pin of the audio chip is electrically connected to the speaker.

[0016] Preferably, the model of the wireless chip is ESP8266.

[0017] Preferably, a display screen is provided on the front of the housing.

[0018] Preferably, the circuit board includes a backup power supply circuit, and the backup power supply circuit is arranged in parallel with the power supply circuit. The input end of the backup power supply circuit is connected to the lithium battery, and the output end of the backup power supply circuit is connected to the main control chip.

[0019] Preferably, a light-emitting diode is provided on the front of the housing, and the light-emitting diode is electrically connected to the circuit board.

[0020] Preferably, a power switch is provided on the front of the housing.

[0021] Preferably, openings corresponding to the radar module and openings corresponding to the speaker are provided on the front of the housing.

[0022] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0023] A two-way communication alarm device for large hydropower station equipment disclosed by the present utility model

[0024] 1. The device can be directly installed at the entrance of the experimental area or at the equipment maintenance location through the permanent magnet. Then, the radar module scans within a certain range. If an abnormal person is detected, an alarm will be issued through the speaker in a timely manner.

[0025] 2. Through the cooperation of the permanent magnet and the gyroscope, when the alarm device is maliciously removed, an alarm signal can be automatically sent to the monitoring system of the hydropower station device.

[0026] 3. The backup power supply circuit can add redundancy to the power supply circuit, so that when the power supply circuit fails, it can be switched to the backup power supply circuit in a timely manner, thereby ensuring that the alarm device can operate for a long time.

[0027] 4. Before the infrared receiver receives the infrared signal, all devices are in the sleep state. After the infrared receiver receives the infrared signal, all devices start to work. In this way, the energy consumption can be effectively reduced and resources can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the present utility model;

[0029] Figure 2 is a schematic structural diagram of the circuit board;

[0030] Figure 3 is a schematic structural diagram inside the housing;

[0031] Figure 4 is a schematic diagram of the back of the housing;

[0032] Figure 5 is a schematic circuit diagram of the power supply circuit;

[0033] Figure 6 is a schematic circuit diagram of the main control chip;

[0034] Figure 7 is a schematic circuit diagram of the wireless chip;

[0035] Figure 8 is a schematic circuit diagram of the audio chip;

[0036] Figure 9 is a schematic circuit diagram of the backup power supply circuit.

[0037] In the figure: 1. Housing; 2. Speaker; 3. Permanent magnet; 4. Lithium battery; 5. Radar module; 6. Gyroscope; 7. Circuit board; 71. Power supply circuit; 72. Main control chip; 73. Wireless chip; 74. Audio chip; 75. Backup power supply circuit; 8. Infrared receiver; 9. Display screen; 10. Light-emitting diode; 11. Power switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] Next, the technical solutions of the present utility model will be described in conjunction with the drawings in the embodiments of the present utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they are only corresponding to the drawings of the present utility model for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation:

[0039] Embodiment 1 is as follows:

[0040] Combined with the attached Figures 1-4The described two-way communication alarm device for large hydropower station equipment includes a housing 1. A speaker 2 is provided on the front of the housing 1, and a permanent magnet 3 is provided on the back of the housing 1. The speaker 2 is used to emit sound to the outside to achieve the purpose of prompt alarm. The permanent magnet 3 can be adsorbed on metal, thus facilitating the installation of the alarm device.

[0041] A lithium battery 4, a radar module 5, a gyroscope 6, a circuit board 7, and an infrared receiver 8 are provided inside the housing 1, and the lithium battery 4 is electrically connected to the radar module 5, the gyroscope 6, the circuit board 7, and the speaker 2 respectively. The lithium battery 4 has the characteristic of energy storage. Therefore, using the lithium battery 4 for power supply can enable this alarm device to operate independently, allowing this alarm device to be dispersed in various places during use, thereby increasing the installation range of this alarm device.

[0042] The radar module 5 and the gyroscope 6 are respectively electrically connected to an input port of the circuit board 7, and the output ports of the circuit board 7 are respectively electrically connected to the radar module 5 and the speaker 2.

[0043] It should be noted that the connection between the input ports of the circuit board 7 and the radar module 5, the gyroscope 6, and the infrared receiver 8 is respectively used to receive the scan data generated after the radar module 5 scans, the angle data sent by the gyroscope 6, and the signal indicating whether the external infrared laser is received by the infrared receiver 8. The connection between the output port of the circuit board 7 and the radar module 5 is to send a scan start signal to the radar module 5, and the connection with the speaker 2 enables the speaker 2 to emit a sound alarm when the radar module 5 scans an abnormal person.

[0044] In addition, the permanent magnet 3 is set to be columnar. When this device is maliciously removed, the permanent magnet 3 will serve as a fulcrum of a rotating shaft, causing the bottom of the device to leave the equipment first. Thus, the gyroscope 6 inside the device will have a relatively large angular velocity. Based on the suddenly increased angular velocity data of the gyroscope 6, the circuit board 7 can determine that this device has been maliciously removed, and then send an alarm signal to the monitoring system of the hydropower station device.

[0045] Embodiment 2 is as follows:

[0046] Based on Embodiment 1, an opening corresponding to the infrared receiver 8 is provided on the front of the housing 1.

[0047] Among them, the infrared receiver 8 can be regarded as a trigger. Before the infrared receiver 8 receives an infrared signal, all devices are in a sleep state. After the infrared receiver 8 receives the infrared signal, each device starts to be awakened and work. In this way, it can effectively reduce energy consumption, save resources, and after the initial wake-up, only the radar module 5 starts to enter a slow scanning state. When there is human activity in the area scanned by the radar, the radar module 5 immediately switches to a fast scanning state. Every 10 seconds, the data processing part in the circuit board 7 stores the detected human body distance and motion information into the internal memory for subsequent analysis and processing;

[0048] In addition, the opening enables the infrared signal to pass through, so that it can be smoothly received by the infrared receiver 8.

[0049] Embodiment 3 is as follows:

[0050] On the basis of Embodiment 2, in combination with the attached Figures 5-9 , the circuit board 7 is further defined. The circuit board 7 includes a power supply circuit 71, a main control chip 72, a wireless chip 73, and an audio chip 74. Among them, the power supply circuit 71 is connected to the lithium battery 4 and is used to convert the output voltage of the lithium battery 4 into a low voltage and output it to the main control chip 72; the subsequent wireless chip 73 and audio chip 74 are powered by the main control chip 72. In addition, since the lithium battery 4 does not need to step down the voltage when powering devices such as the gyroscope 6 and the radar module 5, the power supply relationship between them is a normal power supply relationship;

[0051] The input pins of the main control chip 72 are respectively electrically connected to the radar module 5, the gyroscope 6, and the infrared receiver 8, and the output pins of the main control chip 72 are respectively electrically connected to the wireless chip 73 and the audio chip 74;

[0052] It should be noted that the main control chip 72 is a processor, which generally integrates a memory, a processing chip, and peripheral circuits, etc., and has a certain ability to store and process data. Thus, in Embodiment 2, the data processing part in the circuit board 7 is the main control chip 72. The memory in the main control chip 72 stores the human body distance and motion information scanned by the radar module 5, and then the processing chip uses built-in algorithms or programs to judge conditions and perform corresponding calculations or judgment processing on the data information in the memory. Finally, it is determined whether the personnel scanned by the radar module 5 will accidentally touch the maintenance equipment or enter the experimental area by mistake;

[0053] The output pin of the wireless chip 73 is signal-connected to the hydropower station device monitoring system. The wireless chip 73 can transmit the above result information to the remote hydropower station device monitoring system wirelessly. The hydropower station device monitoring system can integrate these signals and display them to the staff operating the monitoring system;

[0054] The output pin of the audio chip 74 is electrically connected to the speaker 2. If the above-mentioned result will be caused, then the main control chip 72 will control the speaker 2 to emit an alarm sound through the audio chip 74 to remind the personnel entering the radar scanning area.

[0055] Specifically, the model of the wireless chip 73 is ESP8266. This model of wireless chip 73 has the advantages of low cost, low power consumption, high integration, high performance, flexibility and programmability, and strong stability.

[0056] Embodiment 4 is as follows:

[0057] Based on Embodiment 1, a display screen 9 is provided on the front surface of the housing 1. The display screen 9 can display alarm information to prompt the personnel entering the scanning area of the radar module 5 to leave, and the content displayed on the display screen 9 is determined according to the information data sent by the main control chip 72.

[0058] Embodiment 5 is as follows:

[0059] Based on Embodiment 3, the circuit board 7 further includes a backup power supply circuit 75, and the backup power supply circuit 75 is arranged in parallel with the power supply circuit 71. The input end of the backup power supply circuit 75 is electrically connected to the lithium battery 4, and the output end of the backup power supply circuit 75 is electrically connected to the main control chip 72; through the backup power supply circuit 75, redundant design can be added to the power supply circuit 71, so that when the power supply circuit 71 fails, the main control chip 72 can timely switch from the power supply circuit 71 to the backup power supply circuit 75, thereby ensuring the stable operation of the present alarm device;

[0060] It should be noted that normally the backup power supply circuit 75 is in a closed state, and the main control chip 72 is provided with a detection circuit for detecting the working state of the power supply circuit 71. When the detection circuit determines that the power supply circuit 71 fails, the main control chip 72 will timely send a signal to control the backup power supply circuit 75 to turn on, maintaining the power supply of the lithium battery 4 to the circuit board 7, thereby ensuring the stable operation of the present alarm device.

[0061] Embodiment 6 is as follows:

[0062] Based on Embodiment 1, a light-emitting diode 10 is provided on the front surface of the housing 1. The light-emitting diode 10 is electrically connected to the circuit board 7. When the radar module 5 scans an abnormal person, the circuit board 7 will control the light-emitting diode 10 to repeat turning on and off to achieve the flashing of the light-emitting diode 10, so as to cooperate with the speaker 2 to achieve the purpose of sound and light alarm.

[0063] Embodiment 7 is as follows:

[0064] Based on Example 1, a power switch 11 is provided on the front of the housing 1, and the switch is used to turn on and off the power supply from the lithium battery 4 to the radar module 5, the gyroscope 6, the circuit board 7 and the speaker 2, that is, to control the start and stop operation of the alarm device.

[0065] Embodiment 8 is:

[0066] On the basis of Example 2, the front side of the housing 1 is provided with an opening corresponding to the radar module 5 and an opening corresponding to the speaker 2, wherein these openings are composed of a plurality of evenly distributed openings, which can facilitate the emission of electromagnetic waves from the radar module 5 and amplify the sound emitted by the speaker 2.

[0067] In combination with the above content, when implementing a two-way communication alarm device for large hydropower station equipment described in the utility model, first, after the device is started, the main control chip 72 in the circuit board 7 executes a self-test program and configures the network. After the network configuration is successful, the clock is automatically calibrated, and an HTTPS connection is established with the server of the hydropower station equipment monitoring system through the wireless chip 73 to obtain the sound content and operation mode sent by the monitoring system, and submit the information to be reported to the server to achieve two-way communication. At the same time, information is written in the Flash space inside the device to save the alarm information and ensure information traceability;

[0068] It should be noted that the device will automatically clean up information older than 30 days to save device memory, and the transmission and storage of information uses MD5 encryption verification method to ensure information security;

[0069] After the device self-check is completed, the display screen 9 lights up, displays relevant parameter information, and automatically turns off after 5 seconds and enters a sleep state; except for the infrared receiver 8, other modules are in a dormant state to reduce energy consumption; when the infrared receiver 8 receives an operation signal, the device will quickly wake up and enter a working state, and the radar module 5 will start to enter a slow scanning state to conduct a preliminary detection of the surrounding environment; if there is human activity in the warning area, the radar module 5 will immediately switch to a fast scanning state, and every 10 seconds, the device will store the detected human body distance and movement information in the internal memory for subsequent analysis and processing;

[0070] When a person approaches the warning area, the alarm body determines the person's movement direction based on the pedestrian's speed and position, and the speaker 2 emits different sound reminders according to different movement directions. The sound content is the work content of the current equipment working surface set in the audio chip 74; when the person approaches, the speaker 2 emits a sound reminder, and the frequency of the flashing light of the light-emitting diode 10 increases. When the device itself is maliciously removed, the permanent magnet 3 and the gyroscope 6 will cooperate to immediately activate the alarm mechanism, and the device will send an alarm message to the hydropower station device monitoring system, and the monitoring system will pass the alarm message to the relevant responsible person.

[0071] The parts not detailed in this utility model are prior art. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of this utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within this utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A two-way communication alarm device for large hydropower station equipment, characterized by: It comprises a housing (1), wherein a loudspeaker (2) is provided on the front side of the housing (1), and a permanent magnet (3) is provided on the back side of the housing (1); The housing (1) is provided with a lithium battery (4), a radar module (5), a gyroscope (6), a circuit board (7) and an infrared receiver (8), and the lithium battery (4) is electrically connected to the radar module (5), the gyroscope (6), the circuit board (7) and the speaker (2) respectively; The radar module (5), the gyroscope (6) and the infrared receiver (8) are respectively electrically connected to an input port of the circuit board (7), and the output port of the circuit board (7) is respectively electrically connected to the radar module (5) and the speaker (2).

2. The two-way communication alarm device for large hydropower station equipment according to claim 1, characterized in that: The front side of the housing (1) is provided with an opening corresponding to the infrared receiver (8).

3. The two-way communication alarm device for large hydropower station equipment according to claim 2, characterized in that: The circuit board (7) comprises a power supply circuit (71), a main control chip (72), a wireless chip (73) and an audio chip (74), wherein the power supply circuit (71) is connected to the lithium battery (4) and is used to convert the output voltage of the lithium battery (4) into low voltage electricity and output it to the main control chip (72); The input pins of the main control chip (72) are electrically connected to the radar module (5), the gyroscope (6) and the infrared receiver (8), respectively, and the output pins of the main control chip (72) are electrically connected to the wireless chip (73) and the audio chip (74), respectively; The output pin of the wireless chip (73) is connected to the signal of the hydropower station device monitoring system; The output pin of the audio chip (74) is electrically connected to the speaker (2).

4. The two-way communication alarm device for large hydropower station equipment as claimed in claim 3, characterized in that: The model of the wireless chip (73) is ESP8266.

5. The two-way communication alarm device for large hydropower station equipment as claimed in claim 3, characterized in that: The circuit board (7) comprises a backup power supply circuit (75), and the backup power supply circuit (75) and the power supply circuit (71) are arranged in parallel, the input end of the backup power supply circuit (75) is electrically connected to the lithium battery (4), and the output end of the backup power supply circuit (75) is electrically connected to the main control chip (72).

6. The two-way communication alarm device for large hydropower station equipment according to claim 1, characterized in that: A display screen (9) is provided on the front of the housing (1).

7. The two-way communication alarm device for large hydropower station equipment according to claim 1, characterized in that: A light emitting diode (10) is provided on the front side of the housing (1), and the light emitting diode (10) is electrically connected to the circuit board (7).

8. The two-way communication alarm device for large hydropower station equipment according to claim 1, characterized in that: A power switch (11) is provided on the front side of the housing (1).

9. The two-way communication alarm device for large hydropower station equipment according to claim 1, characterized in that: The front side of the housing (1) is provided with an opening corresponding to the radar module (5) and an opening corresponding to the speaker (2).

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