Lamp post type civil air defense alarm system and control method thereof

Abstract

The invention relates to a lamp post type civil air defense alarm system and a control method thereof.The lamp post type civil air defense alarm system comprises a wireless radio frequency module, a control module, a power amplifier module and an alarm sound setting module, and the serial port communication end of the wireless radio frequency module is connected with the first serial port communication end of the control module; a power signal output end of the wireless radio frequency module is connected with a power signal input end of the control module, a start-stop signal input end of the alarm sound setting module is connected with a start-stop signal output end of the control module, and a serial port communication end of the alarm sound setting module is connected with a second serial port communication end of the control module. The alarm sound signal communication end of the control module is connected with the alarm sound signal communication end of the power amplifier module, and the wireless radio frequency module is matched, so that the size of equipment is reduced, and the system can flexibly adapt to various installation environments. Corresponding alarm sound signals are customized according to area requirements, and the alarm sound setting module transmits the signals to the power amplifier module for amplification and outputs the signals to the alarm element, so that the accuracy of the alarm signals is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of a lamp pole type civil air defense alarm system, and in particular to a lamp pole type civil air defense alarm system and a control method thereof. Background Art

[0002] At present, in traditional civil air defense alarm systems, the alarm equipment is usually large in size. Especially when the power demand is high, the size of the power amplifier module and the power supply module is large, which is not suitable for use in environments with limited space or restricted installation conditions. In addition, the wireless communication and control modules of traditional systems have low integration and single interfaces, making it difficult to achieve customized control of alarm signals. The transmission path of alarm signals is complex, which increases the risk of delay and interference, making it difficult to meet the needs of fast response and stable output in a variety of application scenarios. Therefore, the prior art urgently needs a miniaturized, highly integrated, and interface-rich lamp pole-type civil air defense alarm system to adapt to a variety of installation environments and achieve efficient and customized alarm signal output. Summary of the invention

[0003] In order to solve the problems that traditional civil air defense alarm systems are large in size, the power amplifier module and the power supply module are too large in size, and it is difficult to adapt to the installation environment with limited space, and the wireless communication and control modules have low integration, a single interface, and it is difficult to customize the output of the alarm signal, the present application provides a lamp pole type civil air defense alarm system and a control method thereof.

[0004] A lamp pole type civil air defense alarm system, the lamp pole type civil air defense alarm system comprises a wireless radio frequency module, a control module, a power amplifier module and an alarm sound setting module, the serial port communication end of the wireless radio frequency module is connected to the first serial port communication end of the control module, the power signal output end of the wireless radio frequency module is connected to the power signal input end of the control module, the start / stop signal input end of the alarm sound setting module is connected to the start / stop signal output end of the control module, the serial port communication end of the alarm sound setting module is connected to the second serial port communication end of the control module, the alarm sound signal communication end of the control module is connected to the alarm sound signal communication end of the power amplifier module, and the power amplifier signal output end of the power amplifier module is connected to an alarm element; When the control module has successfully verified the data and is ready to enter the alarm issuance process, based on the first serial port communication terminal of the control module, the power signal output terminal of the wireless RF module outputs the corresponding power signal to the control unit, so that the start / stop signal output terminal of the control unit outputs the corresponding start / stop signal to the alarm setting module to customize the alarm signal, and sends the customized alarm signal to the control module through the serial port communication terminal of the alarm setting module, and then outputs the amplified and customized alarm signal through the power amplifier module that communicates data with the control module.

[0005] By adopting the above technical solution and matching it with a wireless RF module, the size of the equipment can be greatly reduced while ensuring functionality and power, so that the system can flexibly adapt to a variety of installation environments without being restricted by space. At the same time, in order to solve the problems of low integration of wireless communication and control modules, single interface, and difficulty in customizing the output of alarm signals in traditional systems, the system adopts a customized alarm signal control design. After the control module completes the data verification, it first activates the control signal through the wireless RF module, and then customizes the corresponding alarm signal according to regional requirements. The alarm setting module transmits the signal to the power amplifier module for amplification and outputs it to the alarm element. This technical solution not only enables the device to have a wider range of application scenarios, but also significantly improves the adaptability and accuracy of the alarm signal.

[0006] Preferably, the lamp pole type civil air defense alarm system further includes a power supply module for supplying power to the control module, the control module includes a first switch conduction element and a second switch conduction element, the power output end of the power supply module is connected to the first conduction end of the first switch conduction element, a common node between the second conduction end of the first switch conduction element and the ground is connected to the second switch conduction element, and the second switch conduction element is used to control entry into the alarm issuance process.

[0007] By adopting the above technical solution, when the control module completes data verification and is ready to enter the alarm issuance process, the power signal output end of the wireless radio frequency module can transmit the corresponding power signal to the control module, thereby effectively activating the alarm setting module and realizing the customization of the alarm signal. The customized alarm signal is transmitted to the power amplifier module through the control module and output to the alarm element, realizing the flexible adjustment of the alarm signal for different areas and environments, thereby improving the accuracy and applicability of the alarm signal.

[0008] Preferably, the first conduction contact of the second switch conduction element is connected to the power signal output terminal of the wireless radio frequency module, the second conduction contact of the second switch conduction element is connected to the start / stop signal input terminal of the alarm sound setting module, the common node between the second conduction terminal of the first switch conduction element and the ground is connected to the common contact of the second switch conduction element, the common node between the second conduction terminal of the first switch conduction element and the ground is connected to the state switching signal input port of the power amplifier module, the first switch conduction element also includes a suspended contact, when the alarm issuance process is not entered, the second switch The first switch conduction element is switched to a suspended contact, and the first switch conduction element is turned on. When the alarm issuance process is about to begin, the second switch conduction element is switched to the first conduction contact, and the first switch conduction element is disconnected. The power amplifier module switches the power supply from the power supply module to the wireless RF module according to the voltage changes generated between the power supply, so as to switch the low power consumption state of the power amplifier module to the normal operating state. When the feedback signal from the power amplifier module is received, the second switch conduction element is switched to the second conduction contact, and the first switch conduction element is turned on, so that the lamp pole type civil air defense alarm system enters the alarm issuance process.

[0009] By adopting the above technical solution, a power supply module can be added to the control module, and the first switch conduction element and the second switch conduction element can be logically controlled to flexibly manage the power switching process. This design not only ensures the continuous power supply of the control module, but also can control the opening and closing of the alarm issuance process according to actual needs, thereby improving the stability of the system and the safety of operation, and ensuring that the alarm system can operate normally at critical moments.

[0010] Preferably, a variable resistance element is provided between the second conduction end of the first switch conduction element and the ground, the first conduction end of the variable resistance element is connected to the second conduction end of the first switch conduction element, the second conduction end of the variable resistance element is grounded, and the variable resistance end of the variable resistance element is connected to the state switching signal input port of the power amplifier module.

[0011] By adopting the above technical solution, the conduction contacts of the second switch conduction element can be connected to the signal ends of the wireless radio frequency module and the alarm sound setting module respectively, and a voltage change is generated between the state switching signal input end of the power amplifier module and the power supply module to control the state switching of the power amplifier module. In this way, in the early stage of alarm issuance, the system can automatically switch the power amplifier module to a low power consumption state according to the voltage state, and quickly switch to a normal working state after preparing to enter the alarm issuance process, thereby effectively reducing power consumption and extending the service life of the system.

[0012] Preferably, the lamp pole type civil air defense alarm system further includes an LED light indication module, an indication signal input end of the LED light indication module is connected to an indication signal output end of the control module, and the LED light indication module is used to indicate the operating status of the lamp pole type civil air defense alarm system, and the operating status includes at least a state of not entering the alarm issuing process, a state of preparing to enter the alarm issuing process, and a state of having entered the alarm issuing process.

[0013] By adopting the above technical solution, a variable resistance element can be added between the second conduction end of the first switch conduction element and the ground to adjust the state switching signal of the power amplifier module. Through this design, the system can flexibly control the signal strength when switching the working state of the power amplifier module, making the switching process of the power amplifier module more stable and reliable, avoiding signal interference caused by voltage fluctuations, thereby improving the stability and accuracy of the alarm signal issuance.

[0014] A control method for a lamp pole type civil air defense alarm system, using a lamp pole type civil air defense alarm system, the control method comprising: Detect the communication status of the master station. If the communication status of the master station is abnormal, perform a preset indication operation based on the indication system of the lamp pole and switch to a standby communication status; If the communication status of the master station is normal, then obtain the lamp pole associated block information; According to the lamp pole associated block information, the regional alarm requirement is determined, and according to the regional alarm requirement, the corresponding warning sound signal is customized.

[0015] By adopting the above technical solution, an LED light indicator module can be added to the system to intuitively display the operating status of the light pole type civil air defense alarm system. The LED indicator module can display whether the system is currently in the alarm release process, preparation state or standby state, thereby providing staff with clear status indications, facilitating quick judgment and maintenance of the system status, thereby improving the system's operability and maintenance efficiency.

[0016] Preferably, before the step of detecting the communication state of the master station and, if the communication state of the master station is abnormal, performing a preset indication operation based on the indication system of the lamp pole and switching to the standby communication state, the step includes: Automatically load preset communication parameters when starting for the first time, the preset communication parameters include the communication frequency band, signal transmission protocol and encryption key of the master station; Perform signal scanning based on the wireless radio frequency module, detect and lock the communication frequency band of the master station to obtain the corresponding communication signal of the master station; If the corresponding master station communication signal is obtained, identity authentication is performed based on the encryption key; If the identity verification is successful, an encrypted communication link is established with the main station.

[0017] By adopting the above technical solution, when the communication status of the main station is detected to be abnormal, it can automatically switch to the backup communication status and indicate the status through the LED indicator module. This design ensures the emergency communication capability of the system in the case of abnormal communication of the main station, so that the system can still operate without relying on the communication of the main station, thereby improving the reliability of the system and its ability to respond to emergencies.

[0018] Preferably, the step of obtaining the lamp pole associated block information includes: Determine the coordinates of the light pole location based on the built-in navigation system; According to the lamp pole position coordinates, matching and generating the corresponding preset block population interest in the local area database; Based on the established lamp pole communication link, preliminary block information is obtained after the visual system in the lamp pole performs image analysis and processing, wherein the preliminary block information at least includes population flow information and population density; According to the preliminary block information, the corresponding actual block population interest is determined, and the actual block population interest is compared with the preset block population interest to generate corresponding lamp pole associated block information.

[0019] By adopting the above technical solution, the communication parameters can be automatically loaded at the first startup, and the master station signal can be scanned and encrypted through the wireless radio frequency module to ensure that the system can quickly and safely establish the master station communication link after startup. This design not only improves the startup efficiency of the system, but also ensures the security of communication data, thereby improving the overall stability of the alarm system and the reliability of communication.

[0020] Preferably, the step of matching and generating the corresponding preset block population interest in the local area database according to the lamp pole position coordinates includes: According to the lamp pole location coordinates, matching corresponding geographic tag information in a local area database, the geographic tag information including a place name, street or area code; Querying a cloud database for key data matching the geo-tag information, the key data including mobility information, activity type, and interest preference; According to the key data, a corresponding preset block population interest level is generated, a mapping relationship is established between the preset block population interest level and the geographic tag information, and the mapping relationship is stored in the local area database.

[0021] By adopting the above technical solution, after determining the location coordinates of the lamp pole based on the built-in navigation system, the corresponding preset block population interest can be generated by matching the geographic tag information in the regional database. This method combines actual geographic and population data to provide accurate basic information for subsequent alarm demand analysis, thereby improving the system's customization capabilities, making the alarm content more in line with regional needs, and effectively improving the response accuracy of the alarm system.

[0022] Preferably, the step of determining, based on the lamp pole associated block information, and customizing the corresponding warning sound signal according to the regional alarm requirement comprises: Determine the corresponding regional alarm demand according to the lamp pole associated block information, wherein the regional alarm demand includes a demand level and a demand characteristic; According to the demand characteristics, corresponding warning sound parameters and / or indication parameters are selected from the preset warning sound library, wherein the warning sound parameters include volume parameters and audio parameters, and the indication parameters include light display parameters and projection parameters; According to the demand level, adjusting the warning sound parameters; A corresponding warning signal is generated according to the warning parameter and / or the indication parameter.

[0023] By adopting the above technical solution, the regional alarm demand can be determined according to the information of the lamp pole associated block, and the corresponding alarm sound signal can be customized based on the demand level and characteristics, so that the volume, frequency and other parameters of the alarm match the current demand. This method realizes the customized output of the alarm signal, can flexibly adjust the alarm intensity according to the demand, and ensure that the alarm information can cover the target population, thereby effectively improving the flexibility of the alarm system and the effectiveness of alarm dissemination.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: By matching the wireless RF module, the size of the equipment is greatly reduced while ensuring the function and power, so that the system can flexibly adapt to a variety of installation environments without being restricted by space. At the same time, in order to solve the problems of low integration of wireless communication and control modules, single interface, and difficult customized output of alarm signals in traditional systems, the system adopts a customized alarm signal control design. After the control module completes the data verification, it first activates the control signal through the wireless RF module, and then customizes the corresponding alarm signal according to regional requirements. The alarm setting module transmits the signal to the power amplifier module for amplification and outputs it to the alarm element. This technical solution not only enables the device to have a wider range of application scenarios, but also significantly improves the adaptability and accuracy of the alarm signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of a lamp pole type civil air defense alarm system in one embodiment of the present application.

[0026] Figure 2 This is a schematic diagram of a specific structure of a lamp pole type civil air defense alarm system in one embodiment of the present application; Figure 3 is a flow chart of a control method of a lamp pole type civil air defense alarm system in one embodiment of the present application; Figure 4 This is another implementation flow chart of a control method for a lamp pole type civil air defense alarm system in one embodiment of the present application; Figure 5 This is a flowchart for implementing step S20 in a control method of a lamp pole type civil air defense alarm system in one embodiment of the present application; Figure 6 This is a flowchart for implementing step S202 in a control method of a lamp pole type civil air defense alarm system in one embodiment of the present application; Figure 7 It is a flow chart for implementing step S30 in a control method of a lamp pole type civil air defense alarm system in one embodiment of the present application.

[0027] Description of reference numerals: 1. Wireless radio frequency module; 2. Control module; 21. First switch conduction element; 22. Second switch conduction element; 23. Variable resistance element; 3. Power amplifier module; 4. Alarm sound setting module; 5. Power supply module; 6. LED light indication module. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-7 This application is described in further detail.

[0029] like Figure 1-2 As shown, a lamp pole type civil air defense alarm system, a lamp pole type civil air defense alarm system includes a wireless radio frequency module 1, a control module 2, a power amplifier module 3 and an alarm sound setting module 4, the serial port communication end of the wireless radio frequency module 1 is connected to the first serial port communication end of the control module 2, the power signal output end of the wireless radio frequency module 1 is connected to the power signal input end of the control module 2, the start / stop signal input end of the alarm sound setting module 4 is connected to the start / stop signal output end of the control module 2, the serial port communication end of the alarm sound setting module 4 is connected to the second serial port communication end of the control module 2, the alarm sound signal communication end of the control module 2 is connected to the alarm sound signal communication end of the power amplifier module 3, and the power amplifier signal output end of the power amplifier module 3 is connected to the alarm element; When the control module 2 successfully verifies the data and is ready to enter the alarm issuance process, based on the first serial port communication end of the control module 2, the power signal output end of the wireless RF module 1 outputs the corresponding power signal to the control unit, so that the start / stop signal output end of the control unit outputs the corresponding start / stop signal to the alarm setting module 4 to customize the alarm signal, and sends the customized alarm signal to the control module 2 through the serial port communication end of the alarm setting module 4, and then outputs the amplified and customized alarm signal through the power amplifier module 3 that communicates data with the control module 2.

[0030] In this embodiment, in the lamp pole type civil air defense alarm system, the port connection relationship between each module forms a set of tight control logic, so that the system can smoothly enter the alarm issuing process after completing the data verification. The serial port communication end of the wireless radio frequency module 1 is connected to the first serial port communication end of the control module 2, which is used to receive and transmit communication instructions, so that the control module 2 can process and coordinate the work of other modules after receiving the instructions. The power signal output end of the wireless radio frequency module 1 is connected to the power signal input end of the control module 2 to ensure that the control module 2 can start correctly and enter the working state when receiving the power signal. At the same time, the start and stop signal input end of the alarm setting module 4 is connected to the start and stop signal output end of the control module 2, so that when the control module 2 data verification is successful and the alarm is ready to be issued, the alarm sound is controlled by the start and stop signal, so that the alarm sound setting module 4 can generate a customized alarm sound signal according to specific needs. The serial port communication end of the alarm sound setting module 4 is connected to the second serial port communication end of the control module 2, allowing the alarm sound setting module 4 to transmit the generated alarm sound signal to the control module 2 for further data processing and forwarding. The alarm signal communication terminal of the control module 2 is connected to the alarm signal communication terminal of the power amplifier module 3, ensuring that after receiving the customized alarm signal, the control module 2 can amplify the signal through the power amplifier module 3, and finally transmit the signal to the alarm element at the power amplifier signal output terminal of the power amplifier module 3 to sound an alarm. The entire control logic realizes signal transmission and state control between modules through the management of the control module 2: when the control module 2 successfully verifies the data, it first starts the power output of the wireless radio frequency module 1 through the first serial port communication terminal to start the system and ensure the linkage of the modules. The control unit then triggers the start-stop signal, so that the alarm setting module 4 generates a customized alarm signal, and transmits it to the control module 2 through the serial port, and then the control module 2 transmits the signal to the power amplifier module 3 to complete the amplification and output of the alarm signal. In this close logical connection, each module completes command reception, signal processing and alarm issuance in sequence to ensure that the system responds quickly and efficiently.

[0031] In summary, by matching the wireless RF module 1, the size of the device is greatly reduced while ensuring the function and power, so that the system can flexibly adapt to a variety of installation environments without being restricted by space. At the same time, in order to solve the problems of low integration of wireless communication and control module 2, single interface, and difficult customized output of alarm signals in traditional systems, the system adopts a customized alarm signal control design. After the control module 2 completes the data verification, it first activates the control signal through the wireless RF module 1, and then customizes the corresponding alarm signal according to regional requirements. The alarm setting module 4 transmits the signal to the power amplifier module 3 for amplification and outputs it to the alarm element. This technical solution not only enables the device to have a wider range of application scenarios, but also significantly improves the adaptability and accuracy of the alarm signal.

[0032] Further, such as Figure 1-2 As shown, a lamp pole type civil air defense alarm system also includes a power supply module 5 for supplying power to the control module 2, the control module 2 includes a first switch conduction element 21 and a second switch conduction element 22, the power output end of the power supply module 5 is connected to the first conduction end of the first switch conduction element 21, the common node between the second conduction end of the first switch conduction element 21 and the ground is connected to the second switch conduction element 22, and the second switch conduction element 22 is used to control the entry into the alarm issuance process.

[0033] In this embodiment, in the lamp pole type civil air defense alarm system, the power supply module 5 provides power support for the control module 2, and controls and switches the operating state of the system through the first switch conduction element 21 and the second switch conduction element 22. The power output end of the power supply module 5 is connected to the first conduction end of the first switch conduction element 21, ensuring that the control module 2 can obtain the start signal when the power supply module 5 provides power. The second conduction end of the first switch conduction element 21 is connected to the ground through a common node, and this common node is also connected to the second switch conduction element 22, which is used to control the switching into the alarm issuance process. In this design, the mutual association of the first switch conduction element 21 and the second switch conduction element 22 forms a logical closed loop, and the working state of the system is switched by controlling the potential change of the common node. When the system needs to enter the alarm issuance state, the second switch conduction element 22 is turned on according to the demand, and the common node connected to the ground produces a potential change, activating the alarm issuance process. Under this associated design, the power output of the power supply module 5 will first be transmitted to the second switch conduction element 22 through the first end of the first switch conduction element 21, so as to complete the state switching under appropriate conditions to ensure the accuracy and timeliness of the alarm issuance process.

[0034] In summary, when the control module 2 completes data verification and is ready to enter the alarm issuance process, the power signal output end of the wireless radio frequency module 1 can transmit the corresponding power signal to the control module 2, thereby effectively activating the alarm setting module 4 and realizing the customization of the alarm signal. The customized alarm signal is transmitted to the power amplifier module 3 via the control module 2 and output to the alarm element, realizing the flexible adjustment of the alarm signal for different areas and environments, thereby improving the accuracy and applicability of the alarm signal.

[0035] Further, such as Figure 1-2 As shown, the first conduction contact of the second switch conduction element 22 is connected to the power signal output end of the wireless radio frequency module 1, the second conduction contact of the second switch conduction element 22 is connected to the start / stop signal input end of the alarm sound setting module 4, the common node between the second conduction end of the first switch conduction element 21 and the ground is connected to the common contact of the second switch conduction element 22, the common node between the second conduction end of the first switch conduction element 21 and the ground is connected to the state switching signal input port of the power amplifier module 3, the first switch conduction element 21 also includes a suspended contact, when the alarm is not issued, the second switch The conduction element 22 is switched to the suspended contact, and the first switch conduction element 21 is switched on. When the alarm issuance process is about to begin, the second switch conduction element 22 is switched to the first conduction contact, and the first switch conduction element 21 is switched off. The power amplifier module 3 switches the power supply from the power supply module 5 to the wireless RF module 1 according to the voltage changes generated between the power supply, so as to switch the low power consumption state of the power amplifier module 3 to the normal operating state. When the feedback signal of the power amplifier module 3 is received, the second switch conduction element 22 is switched to the second conduction contact, and the first switch conduction element 21 is switched on, so that the lamp pole type civil air defense alarm system enters the alarm issuance process.

[0036] In this embodiment, in the lamp pole type civil air defense alarm system, the port connection relationship of each module and the switching state of the switch element constitute a complete alarm control logic. The first conduction contact of the second switch conduction element 22 is connected to the power signal output end of the wireless radio frequency module 1 to ensure that the power signal can be activated by the radio frequency module before the system switches to the alarm issuing state; the second conduction contact of the second switch conduction element 22 is connected to the start and stop signal input end of the alarm sound setting module 4, so as to accurately control the start and stop of the alarm sound when entering the alarm issuing process. The common node between the second conduction end of the first switch conduction element 21 and the ground is connected to the common contact of the second switch conduction element 22, and is connected to the state switching signal input port of the power amplifier module 3, so that the potential state of the common node can affect the power amplifier state switching of the entire system. Before entering the alarm issuing process, the second switch conduction element 22 switches to a suspended contact, keeps the first switch conduction element 21 turned on, and maintains the power amplifier module 3 in a low power consumption state. When the system is ready to enter the alarm issuing state, the second switch conducting element 22 switches to the first conducting contact, so that the power signal is transmitted to the control module 2 through the power supply terminal of the wireless RF module 1, and the first switch conducting element 21 is disconnected, thereby causing the voltage change between the power supply of the power supply module 5 and the power supply of the RF module. The power amplifier module 3 automatically switches from the low power consumption state to the normal operation state according to this voltage change. When the feedback signal of the power amplifier module 3 returns to the control module 2, the second switch conducting element 22 switches to the second conducting contact, activating the start and stop signal input terminal of the alarm sound setting module 4. At this time, the first switch conducting element 21 is turned on again, and the whole system enters a stable alarm issuing process.

[0037] In summary, the power supply module 5 can be added to the control module 2, and the power supply switching process can be flexibly managed in cooperation with the logic control of the first switch conduction element 21 and the second switch conduction element 22. This design not only ensures the continuous power supply of the control module 2, but also can control the opening and closing of the alarm issuance process according to actual needs, thereby improving the stability of the system and the safety of operation, and ensuring that the alarm system can operate normally at critical moments.

[0038] Specifically, the power supply module 5 provides basic power for the control module 2 and related components when the system starts. The power output end of the power supply module 5 is connected to the first conduction end of the first switch conduction element 21 to ensure that the basic power supply is stable in the system initialization state. When the system does not enter the alarm issuance state, the first switch conduction element 21 remains on. At this time, the second conduction end of the first switch conduction element 21 is grounded through a common node to ensure that the power amplifier module 3 remains in a low power consumption mode to save energy. This configuration prevents the system from triggering the high-power amplifier module 3 in the standby state. When the control module 2 completes the data verification and is ready to enter the alarm issuance process, the control module 2 sends a start-stop signal to the second switch conduction element 22. The second switch conduction element 22 switches from the suspended contact to the first conduction contact and is connected to the power signal output end of the wireless RF module 1. At this time, the power signal is provided to the control module 2 through the first conduction contact, the first switch conduction element 21 is disconnected, cutting off the low-power path for the power amplifier module 3 to be grounded, and the voltage begins to change. At the moment when the first switch conduction element 21 is disconnected, the power amplifier module 3 detects the voltage change caused by the power supply state of the power supply module 5 switching to the power supply state of the wireless RF module 1. The power amplifier module 3 switches to the normal working state according to the amplitude and characteristics of this voltage change, and prepares to receive and amplify the alarm signal. When the power amplifier module 3 feedback signal confirms that it has entered the normal working state, the second switch conduction element 22 switches to the second conduction contact, which is connected to the start and stop signal input terminal of the alarm setting module 4. At this time, the control module 2 sends a customized alarm signal to the alarm setting module 4, and the power amplifier module 3 amplifies the signal and outputs it to the alarm element for alarm issuance; Assume that the system is installed on a road section with heavy traffic. Normally, the power amplifier module 3 is in low power mode to reduce energy consumption. When the system detects an emergency and is ready to sound an alarm, the power supply module 5 continues to provide power to the control module 2 through the first switch conduction element 21, but switches the second switch conduction element 22 to the first contact. This switch transfers the power signal of the wireless RF module 1 to the control module 2, causing voltage fluctuations, so that the power amplifier module 3 switches from a low power state to a full power output state. Once in normal power mode, the control module 2 triggers the start and stop signal of the alarm setting module 4, and the power amplifier module 3 receives and amplifies the customized alarm signal to ensure that pedestrians and vehicles on the road section can receive the alarm in time until the alarm process is completed. This example illustrates that the system energy efficiency and response speed are optimized by switching between low power consumption and normal operating states through switches and voltage changes.

[0039] Further, such as Figure 1-2As shown, a variable resistance element 23 is provided between the second conduction end of the first switch conduction element 21 and the ground, the first conduction end of the variable resistance element 23 is connected to the second conduction end of the first switch conduction element 21, the second conduction end of the variable resistance element 23 is grounded, and the variable resistance end of the variable resistance element 23 is connected to the state switching signal input port of the power amplifier module 3.

[0040] In this embodiment, in the lamp pole type civil air defense alarm system, a variable resistance element 23 is connected between the second conduction end of the first switch conduction element 21 and the ground, forming a regulation mechanism for the state switching signal of the power amplifier module 3. The first conduction end of the variable resistance element 23 is connected to the second conduction end of the first switch conduction element 21, and the second conduction end is grounded. Through this configuration, when the first switch conduction element 21 is in the conduction state, the current flows from its second conduction end through the variable resistance element 23 to the ground end, forming a stable current loop. The variable resistance end of the variable resistance element 23 is connected to the state switching signal input port of the power amplifier module 3, so that the resistance value of the variable resistance element 23 can be adjusted in the switch conduction state, and the strength of the state switching signal received by the power amplifier module 3 can be controlled, thereby smoothly managing the state switching of the power amplifier module 3. Since the variable resistance element 23 can adjust the resistance value, the system can generate different signal levels according to different resistance states, thereby refining the state control of the power amplifier module 3 and realizing a smooth transition between the low power consumption state and the normal working state. Through this connection method, the system effectively avoids signal interference caused by voltage surges during the switching process of the power amplifier module 3, and improves the stability and response speed of the alarm system under different power requirements.

[0041] Specifically, the resistance range of the variable resistance element 23 is set according to the working requirements of the power amplifier module 3. Assume that the resistance range of the variable resistance element 23 is 0 to 10 kΩ, where a low resistance (such as 0-2 kΩ) corresponds to a low power consumption state, and a high resistance (such as 5-10 kΩ) corresponds to a normal working state. This setting ensures that the variable resistance element 23 can provide the required voltage change in different states. When the control module 2 is ready to enter the alarm issuance process, it first triggers the resistance adjustment mechanism of the variable resistance element 23. The system gradually reduces or increases the resistance of the variable resistance element 23 to the target value to produce a smooth voltage change to prevent the power amplifier module 3 from having a sudden change when switching states. For example, when switching from a low power consumption state to a normal operating state, the system will gradually reduce the resistance, thereby increasing the input voltage of the power amplifier module 3, ensuring that the power amplifier smoothly transitions to a full power state. During the switching process, the control module 2 monitors the state feedback signal of the power amplifier module 3 in real time to ensure that the resistance adjustment achieves the expected effect. If it is found that the power amplifier module 3 has not completely switched to the normal state when the resistance value is gradually reduced, the control module 2 will continue to fine-tune the resistance value until the power amplifier module 3 enters a stable working state. When the power amplifier module 3 reaches the target state (such as a normal operating state), the variable resistance element 23 locks the current resistance value to prevent signal fluctuations from affecting system operation. The locked resistance value will be maintained within the set range to ensure that the power amplifier module 3 is stably maintained in the corresponding working state; Assume that the lamp pole system needs to switch the power amplifier module 3 from low power consumption to normal operation when it enters the alarm preparation state at night. The system first sets the resistance value of the variable resistor element 23 to 10kΩ, and the power amplifier module 3 is in a low power consumption state. After receiving the switching signal, the system gradually reduces the resistance value of the variable resistor element 23 to 2kΩ, the input voltage of the power amplifier module 3 gradually increases, and the power is gradually released, and finally reaches a normal working state. In this process, if the control module 2 detects that the power amplifier module 3 has not fully entered the target state, it continues to fine-tune the resistance value until the power amplifier module 3 sends a feedback signal of normal operation, and then locks the resistance value. Through this smooth resistance adjustment, the state switching of the power amplifier module 3 is more stable, avoiding the impact of power consumption and signal mutation.

[0042] In summary, the conduction contacts of the second switch conduction element 22 can be connected to the signal terminals of the wireless RF module 1 and the alarm sound setting module 4 respectively, and a voltage change is generated between the state switching signal input terminal of the power amplifier module 3 and the power module, which is used to control the state switching of the power amplifier module 3. In this way, in the early stage of alarm issuance, the system can automatically switch the power amplifier module 3 to a low power consumption state according to the voltage state, and quickly switch to a normal working state after preparing to enter the alarm issuance process, thereby effectively reducing power consumption and extending the service life of the system.

[0043] Further, such as Figure 1-2As shown, a lamp pole type civil air defense alarm system also includes an LED light indication module 6, the indication signal input end of the LED light indication module 6 is connected to the indication signal output end of the control module 2, and the LED light indication module 6 is used to indicate the operating status of the lamp pole type civil air defense alarm system, and the operating status at least includes a state of not entering the alarm issuance process, a state of preparing to enter the alarm issuance process, and a state of having entered the alarm issuance process.

[0044] In this embodiment, in the lamp pole type civil air defense alarm system, the LED light indication module 6 is connected to the indication signal output end of the control module 2 through its indication signal input end, so as to realize the real-time indication of the system operation status. The control module 2 sends different indication signals to the LED light indication module 6 according to the operation process and current state of the system to correspond to different operation states. Before entering the alarm issuing process, the control module 2 outputs the initial state signal to the LED light indication module 6, so that the indicator light maintains the normal standby indication state; when the system completes the data verification and is ready to enter the alarm issuing process, the control module 2 switches the signal output, and the LED light indication module 6 switches the indicator light state to the alarm preparation state after receiving the corresponding indication signal, reminding the system that the alarm issuing process is about to begin. After entering the alarm issuing process, the control module 2 switches the output signal again, and the LED light indication module 6 further adjusts the indicator light state to the alarm activation state after receiving the new indication signal, so as to display the actual state of the system currently in the process of alarming. This design enables the operation state of the system to be clearly presented at different stages through the linkage between the control module 2 and the LED light indication module 6, ensuring the intuitive understanding of the system state by the operator, and improving the visualization effect and operation convenience of the system.

[0045] In summary, a variable resistance element 23 can be added between the second conduction end of the first switch conduction element 21 and the ground to adjust the state switching signal of the power amplifier module 3. Through this design, the system can flexibly control the signal strength when switching the working state of the power amplifier module 3, making the switching process of the power amplifier module 3 more stable and reliable, avoiding signal interference caused by voltage fluctuations, and thus improving the stability and accuracy of alarm signal issuance.

[0046] like Figure 3 As shown, a control method of a lamp pole type civil air defense alarm system is applied to a lamp pole type civil air defense alarm system, and the control method includes: S10, detecting the communication status of the master station. If the communication status of the master station is abnormal, performing a preset indication operation based on the indication system of the lamp pole and switching to a standby communication status; In this embodiment, detecting the communication status of the main station refers to real-time monitoring of the communication link with the main station through the control module 2 to confirm whether the current communication status is normal. If the communication status of the main station is abnormal, for example, the communication link with the main station is interrupted due to network interference or equipment failure, the system automatically triggers the backup communication mode, and switches to the backup radio frequency communication or cellular network to ensure the normal operation of the alarm system. At the same time, the system uses the LED light indicator module 6 to perform specific flashing indications to prompt the maintenance personnel that the current communication status is abnormal, so as to conduct timely inspection and recovery, thereby ensuring that the system can effectively perform communication tasks in an emergency and avoid alarm failures caused by communication interruptions.

[0047] S20, if the communication status of the master station is normal, obtain the lamp pole associated block information; In this embodiment, obtaining the block information associated with the light pole means that when the communication status of the master station is normal, the system automatically identifies and extracts the specific area information where the current light pole is located through the built-in navigation module or the associated geographic database. The block information associated with the light pole usually includes data such as population density, population mobility and interest related to the area, which is used to accurately determine the alarm needs of the area. For example, in a commercial area with a high population density, the system will automatically obtain the high-density label information of this block to provide a basis for subsequent alarm needs, so that the issuance of alarms is more in line with actual needs and improves the coverage and effectiveness of alarms.

[0048] S30: Determine the regional alarm requirement according to the lamp pole associated block information, and customize the corresponding alarm sound signal according to the regional alarm requirement.

[0049] In this embodiment, determining the regional alarm demand based on the lamp pole associated block information means that after the system obtains information such as population flow, density and interest in the area, it compares these data to evaluate the current alarm demand level of the area, and on this basis, customizes the intensity, frequency and tone of the alarm signal accordingly. The system selects appropriate alarm signal parameters through the alarm setting module 4, such as selecting higher volume and more frequent alarm signals in high-density areas, and lower volume and frequency in relatively low-density areas to reduce unnecessary interference. The customized alarm signal is sent to the power amplifier module 3 through the control module 2 and amplified and output, so as to better meet the actual needs of the area during the alarm issuance process, make the alarm content more targeted, ensure that the alarm has a wide coverage and less interference when transmitting information, and improve the response efficiency and accuracy of the alarm system.

[0050] In summary, an LED indicator module 6 can be added to the system to intuitively display the operating status of the light pole type civil air defense alarm system. The LED indicator module can display whether the system is currently in the alarm release process, preparation state or standby state, thereby providing a clear status indication for the staff, facilitating quick judgment and maintenance of the system status, thereby improving the system's operability and maintenance efficiency.

[0051] In one embodiment, if Figure 4 As shown, before step S10, that is, before the step of detecting the communication state of the master station, if the communication state of the master station is abnormal, performing a preset indication operation based on the indication system of the lamp pole and switching to the standby communication state, it includes: S01. Automatically load preset communication parameters when starting for the first time. The preset communication parameters include the communication frequency band, signal transmission protocol and encryption key of the master station; In this embodiment, automatically loading preset communication parameters at the first startup means that the system automatically initializes a series of communication parameter configurations at the first startup, including the communication frequency band, signal transmission protocol, and encryption key of the master station. By loading these preset communication parameters, the system can quickly establish a communication basis with the master station to ensure that the transmission and reception of all communication data meet the requirements of the master station. For example, the system will automatically identify the frequency band information of the master station, so that subsequent signal reception and transmission operations can be more accurate, and the signal transmission protocol and encryption key ensure the data security and stability of the communication link, avoid data leakage or interference during the communication process, thereby improving the security and efficiency of the system.

[0052] S02, performing signal scanning based on the wireless radio frequency module 1, detecting and locking the communication frequency band of the master station to obtain the corresponding communication signal of the master station; In this embodiment, signal scanning based on the wireless RF module 1 means that after the system loads the preset communication parameters, it uses the wireless RF module 1 to search and detect the surrounding communication signals to lock the specific communication frequency band of the main station. The signal scanning process is not only used to identify the main station frequency band, but also to eliminate the interference of irrelevant signals in the surrounding area to ensure that the correct main station signal frequency band is obtained for the accuracy of subsequent communications. For example, when the system is scanning the signal, it will automatically identify and lock the communication signal of the main station, and filter out other communication frequency bands or interference signals to ensure that the system's communication connection is more accurate and stable.

[0053] S03. If the corresponding master station communication signal is obtained, identity authentication is performed based on the encryption key; In this embodiment, if the corresponding master station communication signal is obtained, identity authentication based on the encryption key means that when the system successfully detects the communication signal of the master station, it will automatically call the preset encryption key for identity authentication to ensure that the identity of the communication object is credible. The identity authentication process is carried out through an encryption protocol, and the encryption key ensures that the data transmission between the system and the master station is not tampered with or intercepted. For example, during the identity authentication process, the system will compare its own encrypted information with the master station. If the verification result returned by the master station meets the preset conditions, it is considered that the identity authentication is successful, which further improves the security and reliability of the system communication link.

[0054] S04. If the identity authentication is successful, an encrypted communication link is established with the master station.

[0055] In this embodiment, if the identity authentication is successful, establishing an encrypted communication link with the main station means that when the system successfully passes the identity authentication, an encrypted communication link will be formally established with the main station to ensure the security of data transmission between the two parties. The establishment of an encrypted communication link means that the data traffic between the system and the main station will be transmitted in an encrypted manner, avoiding possible eavesdropping or data leakage during the transmission process. For example, the encrypted communication link established between the system and the main station can encrypt each data exchange in real time, so that even if there is external interference or monitoring behavior, the transmission content cannot be intercepted or tampered with, thereby ensuring the communication security and stability of the system, which is conducive to the accurate issuance of subsequent alarm information.

[0056] In summary, when the communication status of the main station is detected to be abnormal, it can automatically switch to the standby communication status, and indicate the status through the LED indicator module 6. This design ensures the emergency communication capability of the system in the case of abnormal communication of the main station, so that the system can still run without relying on the communication of the main station, thereby improving the reliability of the system and the ability to cope with emergencies.

[0057] In one embodiment, if Figure 5 As shown, in step S20, the step of obtaining the lamp pole associated block information includes: S201, determining the position coordinates of the light pole based on the built-in navigation system; In this embodiment, based on the built-in navigation system, determining the position coordinates of the lamp pole means that the system uses the built-in navigation module (such as GPS) equipped on the lamp pole to accurately determine the geographical coordinates of the current lamp pole. By obtaining this location information, the system can match the lamp pole with the surrounding geographical area, making the subsequent block information extraction more accurate. The navigation system can not only update the position of the lamp pole in real time, but also associate the coordinate information with the geographical data in the regional database, thereby helping the system to more accurately determine the actual location of the lamp pole and provide a basic geographical reference for subsequent block population interest analysis. For example, in a commercially dense area, after the location of the lamp pole is determined, it can provide a specific basis for the system to further analyze the flow of people and alarm needs in this area.

[0058] S202, matching and generating the corresponding preset block population interest level in the local area database according to the lamp pole position coordinates; In this embodiment, matching and generating the corresponding preset block population interest in the local area database according to the lamp pole position coordinates means that the system matches the corresponding block information in the area database according to the specific coordinate information provided by the navigation module, and extracts the population interest data that matches the location. The preset block population interest is usually generated based on statistical and historical data, which can reflect the activity patterns and attention preferences of residents in the area. For example, if the lamp pole position matches a commercial center area with a high population interest, the system will store the interest data of the location as a preset reference for comparison in subsequent actual detection, so as to better meet the needs of the people in the area and the alarm accuracy requirements.

[0059] S203, based on the established lamp pole communication link, obtaining preliminary block information after image analysis and processing by the visual system in the lamp pole, the preliminary block information at least including population flow information and population density; In this embodiment, based on the established lamp pole communication link, obtaining preliminary block information after the visual system in the lamp pole performs image analysis and processing means that the system analyzes the image data captured by the visual system through the established lamp pole communication link and extracts preliminary block information reflecting the actual situation of the current area. This information includes at least population flow information and population density, which is used to evaluate the actual situation of crowd activities in the current area. For example, in high-density residential areas, through image analysis of the visual system, the system can identify the real-time density and flow of personnel activities, so as to compare with the preset block information and determine whether it is necessary to strengthen or adjust the alarm mode, thereby improving the applicability and coverage of the alarm.

[0060] S204: Determine the corresponding actual block population interest level according to the preliminary block information, and compare the actual block population interest level with the preset block population interest level to generate corresponding lamp pole associated block information.

[0061] In this embodiment, according to the preliminary block information, the corresponding actual block population interest is determined, and the actual block population interest is compared with the preset block population interest to generate the corresponding lamp pole associated block information, which means that the system further evaluates the actual population interest of the current area by analyzing the block information initially obtained, and compares the data with the preset block population interest. By comparing the difference between the two, the system can determine whether the current crowd's activities are consistent with the preset interest, and generate lamp pole associated block information that is more in line with the current situation. For example, if the actual block population interest shows that the activity and density of the crowd in the area are higher than the preset level, the system will adjust the content and frequency of the alarm issuance according to the difference to better meet the current environmental needs and improve the response accuracy and adaptability of the alarm system.

[0062] Specifically, the visual system first uses the camera on the lamp pole to collect image data of the target area in real time, and pre-processes the collected images, including image resolution adjustment, background noise removal and light compensation, to ensure the clarity and stability of the image data. Through the pre-trained target detection algorithm (such as YOLO, Faster R-CNN, etc.), the system detects and marks the position and number of all personnel targets in the image, and counts the total number of people in each frame. The number of people is directly used to calculate the population density of the area. The system tracks the motion trajectory of each detected personnel target, and calculates the movement path and speed change of each person in the continuous frames through the inter-frame comparison algorithm (such as optical flow method, KLT tracking algorithm), so as to generate the population flow information of the area. The flow information includes direction, flow speed, etc., which is used to characterize the activity characteristics of the crowd in the area. The system aggregates the flow and density information of all personnel targets within a set time period (such as 5 minutes) to obtain the population flow frequency and average population density per unit time. These data are compared and analyzed with the historical data of the area (stored in the cloud or local database) to generate the actual block population interest of the area. High mobility frequency and high population density usually correspond to higher interest. The actual block population interest is matched with the preset block population interest to determine whether the interest of the current area meets expectations. If the actual interest is higher than the preset value, the system can automatically increase the frequency and intensity of the alarm to better meet the needs of the crowd. For example, a lamp post is located on a busy commercial street, and the system captures a large number of pedestrian images through the camera within 5 minutes. After detection, an average of about 50 people were identified in each frame of the image, indicating a high population density. At the same time, the motion trajectory analysis shows that most pedestrians move in the same direction and at a fast speed, indicating that the crowd is concentrated on a certain route and moves quickly. Combined with historical data, the system sets the actual population interest in the area to a high value, believing that the population activity intensity in this area is high and it is suitable to use high-volume and frequent alarm signals. Based on this analysis, the system will adjust the alarm settings to ensure that the information conveyed is more in line with the characteristics of the crowd in this type of commercial street.

[0063] In summary, the communication parameters can be automatically loaded at the first startup, and the master station signal can be scanned and encrypted through the wireless radio frequency module 1, ensuring that the system can quickly and safely establish the master station communication link after startup. This design not only improves the startup efficiency of the system, but also ensures the security of communication data, thereby improving the overall stability of the alarm system and the reliability of communication.

[0064] In one embodiment, if Figure 6 As shown, in step S202, the step of matching and generating the corresponding preset block population interest in the local area database according to the lamp pole position coordinates includes: S2021. Match corresponding geographic tag information in a local area database according to the location coordinates of the lamp pole, where the geographic tag information includes a place name, street or area code; In this embodiment, matching the corresponding geographic tag information in the local regional database according to the lamp pole location coordinates means that the system extracts the specific geographic tag matching the location from the regional database according to the lamp pole location coordinates provided by the built-in navigation system. These geographic tag information include place names, streets or area codes, etc., which can reflect the detailed geographical location of the lamp pole. By obtaining these tags, the system can associate the lamp pole with the actual location at the regional level, making subsequent data query and analysis more targeted. For example, when the lamp pole is located in a busy commercial area, the geographic tag may include a specific commercial street name and area code, which is convenient for further identifying the population distribution characteristics of the area.

[0065] S2022. Querying the cloud database for key data matching the geo-tag information, the key data including mobility information, activity type, and interest preference; In this embodiment, querying the cloud database for key data matching the geo-tag information means that the system uses the geo-tag information obtained from the regional database to initiate a query to the cloud database to obtain key data associated with the tag information. These key data usually include population flow information, main activity types, interest preferences, etc. in the area, thereby providing more detailed background data support for the system. For example, if the area corresponding to the geo-tag is a commercial area, the cloud database may return higher mobile population data and commercial activity preference information, which will help to subsequently determine the alarm demand characteristics of the area, so that the system can design more accurate alarms based on the characteristics of the area.

[0066] S2023. Generate corresponding preset block population interest levels based on key data, establish a mapping relationship between the preset block population interest levels and geographic tag information, and store them in a local area database.

[0067] In this embodiment, generating the corresponding preset block population interest based on key data means that after receiving the key data such as mobility information, activity type and interest preference returned by the cloud database, the system analyzes and processes the data and generates the corresponding preset block population interest. This population interest data is stored in the local area database by establishing a mapping relationship with the geographic tag information as a reference for subsequent alarm needs. For example, for areas with high mobility, the preset block population interest generated by the system will be marked as a high-interest area, so that in the actual alarm issuance process, the system can identify that the area may require a higher alarm coverage frequency and intensity, thereby ensuring that the system's alarm information can better meet the needs of the people in the area and improve the adaptability and response accuracy of the alarm system.

[0068] In summary, after determining the location coordinates of the light pole based on the built-in navigation system, the corresponding preset block population interest can be generated by matching the geographic tag information in the regional database. This method combines actual geographic and population data to provide accurate basic information for subsequent alarm demand analysis, thereby improving the system's customization capabilities, making the alarm content more in line with regional needs, and effectively improving the response accuracy of the alarm system.

[0069] In one embodiment, if Figure 7 As shown, in step S30, the steps of determining according to the lamp pole associated block information and customizing the corresponding warning sound signal according to the regional alarm requirements include: S301, determining the corresponding regional alarm demand according to the lamp pole associated block information, where the regional alarm demand includes a demand level and demand characteristics; In this embodiment, determining the corresponding regional alarm demand based on the lamp pole associated block information means that the system analyzes the population density, activity characteristics and population interest of the current area through the acquired lamp pole associated block information to clarify the alarm demand of the area. Regional alarm demand usually includes two aspects: demand level and demand characteristics. The demand level is used to determine the priority of the alarm. For example, a high-level demand is set in a densely populated area to ensure that a high-intensity alarm is issued in a timely manner; the demand characteristics include specific requirements for the alarm, such as whether voice prompts, light displays, etc. are required, so as to more accurately meet the attention needs of different groups of people in the area. For example, in a densely populated and active commercial area, the area may require a higher level and a variety of alarm methods to ensure that the crowd receives the alarm information in a timely manner.

[0070] Specifically, the system first collects basic data such as population density, mobility, and interest preferences in the current area through the information of the light pole associated blocks. These data serve as the basis for evaluating the demand level and demand characteristics to ensure that the evaluation results can truly reflect the characteristics of the region. The system calculates the population density index based on the average population per unit area. Generally, areas with high population density have higher alarm needs, so the density is divided into several levels (for example: low, medium, high, and very high), and the basic weight of the demand level is set according to the level. The mobility of the crowd in the current area (such as the number of daily mobile people or the number of people during peak hours) is calculated through the visual system or the real-time data analysis system. Areas with high mobility usually mean higher demand levels, so the system divides the mobility index into four levels of "low, medium, high, and very high", and adjusts the weight of the demand level accordingly based on this index. The system extracts the interest preference information of the crowd from the regional database or cloud database, such as whether the area is a commercial center, residential area, or entertainment venue. Interest preferences directly affect demand characteristics. For example, for entertainment venues, the demand characteristics may tend to be higher volume and significant light display; while for residential areas, the demand characteristics may require controlling the volume to reduce disturbance to residents. The system combines the above population density index, mobility index and interest preference information, and calculates the final demand level using a weighted average algorithm. For example: Demand level = (population density weight × 0.4) + (mobility weight × 0.3) + (interest preference weight × 0.3). Based on the weighted results, the system divides the demand level of the area into four levels: "low, medium, high, and very high" to guide the setting of alarm sound parameters. According to the comprehensive demand level, the system further refines the demand characteristics. Demand characteristics include volume, frequency, light display effect, etc., to ensure that the alarm effect is in line with the actual situation of the area. For example, in a high demand level area, demand characteristics may include high volume, short interval frequency, and strong light flashing effect; while in a low demand level area, demand characteristics may include low volume, long interval frequency, and soft light display; Assume that the lamp pole is located in a busy commercial area with high mobility and entertainment venues. The system first collects data and calculates that the population density index is "high" and the mobility index is "very high", while the interest preference shows that the area is a commercial entertainment area. The system calculates the demand level as "very high" according to the weighted formula and sets the demand characteristics to high volume, short interval alarm frequency and conspicuous flashing lights. According to the demand characteristics, the system selects volume parameters and light display parameters from the alarm library to ensure that the alarm signal can cover more people and quickly attract attention.

[0071] S302, selecting corresponding alarm sound parameters and / or indication parameters from a preset alarm sound library according to the required characteristics, the alarm sound parameters including volume parameters and audio parameters, and the indication parameters including light display parameters and projection parameters; In this embodiment, selecting corresponding alarm parameters and / or indication parameters in the preset alarm library according to the demand characteristics means that the system selects the most appropriate combination of alarm and indication parameters from the preset alarm library according to the demand characteristics. Alarm parameters usually include volume and audio frequency, etc., to meet different sound intensity requirements; indication parameters include visual effects such as light display and projection, which can attract the attention of the crowd in different ways. For example, in a high-density area at night, the system can select a higher volume parameter and a flashing light display as an indication parameter, so as to more effectively remind the crowd in a noisy environment or insufficient light, and achieve the best alarm effect.

[0072] S303, adjusting the alarm tone parameters according to the demand level; In this embodiment, adjusting the alarm sound parameters according to the demand level means that after determining the demand level, the system adjusts the corresponding alarm sound parameters according to the level to ensure that the intensity and frequency of the alarm match the emergency needs of the current area. Areas with higher demand levels usually require higher volumes and more frequent sound intervals to ensure that the alarm can cover a larger area and quickly attract the attention of the crowd in an emergency; while for areas with lower demand levels, the alarm sound parameters can be adjusted down accordingly to reduce unnecessary interference with the surrounding environment. For example, in a large event venue, if an emergency occurs, a high level of demand will prompt the system to increase the volume and frequency to achieve the effect of quickly evacuating the crowd.

[0073] S304: Generate a corresponding warning signal according to the warning parameter and / or the indication parameter.

[0074] In this embodiment, generating a corresponding warning signal according to the warning sound parameters and / or indication parameters means that after the system selects and adjusts the warning sound parameters and indication parameters, it generates a customized warning signal according to these parameters. The warning signal includes multiple elements such as volume, audio, and visual indication, so that the alarm information can be transmitted through multiple means such as sound and light, ensuring that people can effectively receive it in different environments. For example, in a crowded public place, the warning signal can include a high-decibel sound and a conspicuous flashing light display, making the alarm effect more significant, thereby effectively enhancing the alarm propagation range and propagation effect.

[0075] Specifically, the system first determines the alarm demand level (such as high, medium, and low) and demand characteristics (such as noisy environment, limited vision, etc.) of the current area based on the information of the block associated with the lamp pole, ensuring that the parameter selection can accurately adapt to the situation in the current area. For example, in a high-density commercial area, the demand level is usually high, and the characteristics may involve noisy ambient sounds. According to the demand level, the system selects the appropriate volume and audio frequency in the alarm sound library. High-level demand corresponds to a higher volume (such as above 85 decibels) and a higher frequency audio (such as above 1.5 kHz) to ensure that the alarm signal is still clearly audible in a noisy environment; medium and low-level demand can choose a medium volume (such as 70-80 decibels) and a lower frequency audio to reduce interference with the surrounding environment. The system selects the corresponding lighting display parameters and projection parameters in the alarm sound library according to the demand characteristics. If the ambient light is dim or the area has poor vision, high-brightness flashing light display parameters and projection parameters can be selected to make the alarm signal more visual; under normal lighting conditions, a milder light display mode is selected to ensure a comfortable visual experience. The system combines the selected volume, audio, light display and projection parameters to generate an alarm signal. The generated signal is sent by the control module 2 to the power amplifier module 3, which amplifies and processes the signal and outputs it to the alarm element, thereby achieving the simultaneous issuance of audio and visual alarms. For example, in a densely populated commercial area, the system detects that the demand level is "high" and the demand characteristics are "noisy environment and poor visibility". At this time, the system selects 85 decibel volume parameters and 2 kHz audio parameters from the preset alarm sound library to ensure that the alarm sound can be clearly transmitted in a noisy environment. At the same time, the system selects high-brightness flashing lights as light display parameters, and cooperates with large-scale red projection effects to enhance the visual warning effect. The alarm signal generated by these parameter combinations will be amplified by the power amplifier module 3 and then issued on site, ensuring that people in the area can quickly and clearly perceive the alarm information in a high-noise and complex environment, thereby improving the practicality and response efficiency of the alarm system.

[0076] In summary, the regional alarm demand can be determined based on the information of the lamp pole associated blocks, and the corresponding alarm sound signal can be customized based on the demand level and characteristics, so that the volume, frequency and other parameters of the alarm match the current demand. This method realizes the customized output of the alarm signal, can flexibly adjust the alarm intensity according to the demand, and ensure that the alarm information can cover the target population, thereby effectively improving the flexibility of the alarm system and the effectiveness of alarm dissemination.

[0077] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A light pole type civil air defense alarm system, characterized in that: The lamp pole type civil air defense alarm system comprises a wireless radio frequency module (1), a control module (2), a power amplifier module (3) and an alarm sound setting module (4); the serial port communication end of the wireless radio frequency module (1) is connected to the first serial port communication end of the control module (2); the power signal output end of the wireless radio frequency module (1) is connected to the power signal input end of the control module (2); the start / stop signal input end of the alarm sound setting module (4) is connected to the start / stop signal output end of the control module (2); the serial port communication end of the alarm sound setting module (4) is connected to the second serial port communication end of the control module (2); the alarm sound signal communication end of the control module (2) is connected to the alarm sound signal communication end of the power amplifier module (3); and the power amplifier signal output end of the power amplifier module (3) is connected to an alarm element; When the control module (2) successfully verifies the data and is ready to enter the alarm issuance process, based on the first serial port communication terminal of the control module (2), the power signal output terminal of the wireless radio frequency module (1) outputs a corresponding power signal to the control unit, so that the start / stop signal output terminal of the control unit outputs a corresponding start / stop signal to the alarm sound setting module (4) to customize the alarm sound signal, and sends the customized alarm sound signal to the control module (2) through the serial port communication terminal of the alarm sound setting module (4), and then outputs the amplified and customized alarm sound signal through the power amplifier module (3) that performs data communication with the control module (2).

2. A lamp pole type civil air defense alarm system according to claim 1, characterized in that: The lamp pole type civil air defense alarm system further comprises a power supply module (5) for supplying power to the control module (2); the control module (2) comprises a first switch conduction element (21) and a second switch conduction element (22); a power output end of the power supply module (5) is connected to a first conduction end of the first switch conduction element (21); a common node between the second conduction end of the first switch conduction element (21) and the ground is connected to the second switch conduction element (22); and the second switch conduction element (22) is used to control the entry into the alarm issuance process.

3. A lamp pole type civil air defense alarm system according to claim 2, characterized in that: The first conduction contact of the second switch conduction element (22) is connected to the power signal output terminal of the wireless radio frequency module (1), the second conduction contact of the second switch conduction element (22) is connected to the start / stop signal input terminal of the alarm sound setting module (4), the common node between the second conduction terminal of the first switch conduction element (21) and the ground is connected to the common contact of the second switch conduction element (22), the common node between the second conduction terminal of the first switch conduction element (21) and the ground is connected to the state switching signal input port of the power amplifier module (3), the first switch conduction element (21) also includes a suspended contact, when the alarm issuance process is not entered, the second switch conduction element (22) is switched to a suspended contact, the first switch conduction element (21) is switched on; when the alarm issuance process is about to begin, the second switch conduction element (22) is switched to the first conduction contact, the first switch conduction element (21) is switched off, the power amplifier module (3) switches the power supply from the power supply module (5) to the wireless radio frequency module (1) according to the voltage change generated between the power supply, so as to switch the low power consumption state of the power amplifier module (3) to the normal operating state; when a feedback signal from the power amplifier module (3) is received, the second switch conduction element (22) is switched to the second conduction contact, the first switch conduction element (21) is switched on, so that the lamp pole type civil air defense alarm system enters the alarm issuance process.

4. A lamp pole type civil air defense alarm system according to claim 2, characterized in that: A variable resistance element (23) is provided between the second conduction end of the first switch conduction element (21) and the ground; the first conduction end of the variable resistance element (23) is connected to the second conduction end of the first switch conduction element (21); the second conduction end of the variable resistance element (23) is grounded; and the variable resistance end of the variable resistance element (23) is connected to the state switching signal input port of the power amplifier module (3).

5. The light pole type civil air defense alarm system according to claim 1, characterized in that: The light pole type civil air defense alarm system further comprises an LED light indication module (6), the indication signal input end of the LED light indication module (6) being connected to the indication signal output end of the control module (2), the LED light indication module (6) being used to indicate the operating state of the light pole type civil air defense alarm system, the operating state at least comprising a state of not entering the alarm issuing process, a state of preparing to enter the alarm issuing process, and a state of having entered the alarm issuing process.

6. A control method for a lamp pole type civil air defense alarm system, using a lamp pole type civil air defense alarm system as claimed in any one of claims 1 to 5, characterized in that: The control method comprises: Detect the communication status of the master station. If the communication status of the master station is abnormal, perform a preset indication operation based on the indication system of the lamp pole and switch to a standby communication status; If the communication status of the master station is normal, then obtain the lamp pole associated block information; According to the lamp pole associated block information, the regional alarm requirement is determined, and according to the regional alarm requirement, the corresponding warning sound signal is customized.

7. The control method of a lamp pole type civil air defense alarm system according to claim 6, characterized in that: Before the step of detecting the communication state of the master station and, if the communication state of the master station is abnormal, performing a preset indication operation based on the indication system of the lamp pole and switching to the standby communication state, the method includes: Automatically load preset communication parameters when starting for the first time, the preset communication parameters include the communication frequency band, signal transmission protocol and encryption key of the master station; Based on the wireless radio frequency module (1), signal scanning is performed to detect and lock the communication frequency band of the master station to obtain the corresponding communication signal of the master station; If the corresponding master station communication signal is obtained, identity authentication is performed based on the encryption key; If the identity verification is successful, an encrypted communication link is established with the main station.

8. The control method of a lamp pole type civil air defense alarm system according to claim 6, characterized in that: The step of obtaining the lamp pole associated block information comprises: Determine the coordinates of the light pole location based on the built-in navigation system; According to the lamp pole position coordinates, matching and generating the corresponding preset block population interest in the local area database; Based on the established lamp pole communication link, preliminary block information is obtained after the visual system in the lamp pole performs image analysis and processing, wherein the preliminary block information at least includes population flow information and population density; According to the preliminary block information, the corresponding actual block population interest is determined, and the actual block population interest is compared with the preset block population interest to generate corresponding lamp pole associated block information.

9. The control method of a lamp pole type civil air defense alarm system according to claim 8, characterized in that: The step of matching and generating the corresponding preset block population interest level in the local area database according to the lamp pole position coordinates includes: According to the lamp pole location coordinates, matching corresponding geographic tag information in a local area database, the geographic tag information including a place name, street or area code; Querying a cloud database for key data matching the geo-tag information, the key data including mobility information, activity type, and interest preference; According to the key data, a corresponding preset block population interest level is generated, a mapping relationship is established between the preset block population interest level and the geographic tag information, and the mapping relationship is stored in the local area database.

10. The control method of a light pole type civil air defense alarm system according to claim 6, characterized in that: The step of determining, based on the lamp pole associated block information, and customizing the corresponding warning sound signal according to the regional alarm requirements includes: Determine the corresponding regional alarm demand according to the lamp pole associated block information, wherein the regional alarm demand includes a demand level and a demand characteristic; According to the demand characteristics, corresponding warning sound parameters and / or indication parameters are selected from the preset warning sound library, wherein the warning sound parameters include volume parameters and audio parameters, and the indication parameters include light display parameters and projection parameters; According to the demand level, adjusting the warning sound parameters; A corresponding warning signal is generated according to the warning parameter and / or the indication parameter.

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