65results about How to "Add alarm function" patented technology

The invention discloses an intelligent power transmission line monitoring system and method. The monitoring system comprises a camera, a monitoring host, a power supply, and an audible and visual alarm connected with the monitoring host, wherein the power supply comprises a wind and solar generator and a storage battery, and the monitoring host comprises a main processing unit MCU (Mains Processing Unit), an intelligent power control module, an audio / video coding and decoding module, a 3G wireless communication module and a data storage module. The monitoring system and method have the beneficial effects that a linkage mechanism of abnormity judgment and in-site audible and visual alarming is established on the basis of an image recognition technology, so that when an abnormal risk happens, the functions of remote alarm, image capturing and video recording are achieved, and the function of timely warning and deterring in-site dangerous human activities is achieved through the linkage of the audible and visual alarm; the degrees of automation and intelligence are high, the dependence on maintainers is alleviated, the monitoring can be performed all day long, and the precision and the timeliness of risk identification and judgment can be effectively guaranteed.

A remote control method of a door lock uses a door lock, a door lock braking deice and a communication module. The door lock serving as a locking device for a door locks the door. The door lock braking device receives a locking and unlocking signal and is driven by power to control locking and unlocking of the door lock. The communication module is connected with a doorbell and the door lock braking device respectively and carries an SIM (subscriber identity module) card, the communication module is accessed to a corresponding 3G (third-generation) wireless communication network and is in dial-up connection to a mobile communication terminal of a user, a camera, a microphone and a loudspeaker are further arranged in the communication module, the camera acquires a video signal of a visitor at a door, the video signal is sent to the mobile communication terminal of the user through the 3G wireless communication network, and the user can communicate with the visitor at the door remotely through the microphone and the loudspeaker in the communication module. The user can also open the door lock in a different place by controlling the door lock braking device by the communication module.

The invention discloses an equipment state sensing type 110kV line protection system and an implementation method. The equipment state sensing type 110kV line protection system comprises a relay protection function module, a circuit breaker online monitoring module, a comprehensive analysis function module and a double-power supply switching module; and the relay protection function module is separately connected with a merging unit, an intelligent terminal and a process layer switch via optical cables to form a relay protection device secondary loop. The equipment state sensing type 110kV line protection system constructs an active defense type 110kV line security protection system so as to integrate equipment state sensing, accident pre-warning and relay protection of the 110kV line, which not only reduces the faults of the relay, but also quickly removes the faults, reduces the investment and operation and maintenance costs of intelligent substation equipment and protects the robustness of the grid in real time, and if the relay protection device can increase the active defense alarm function of the equipment state sensing, the principles of relay protection can be optimized, the occurrence of faults is reduced, the faults are quickly removed, and the investment and operation and maintenance costs of intelligent substation equipment can be reduced.

The invention relates to an anti-creeping water heater, comprising a casing, an inner bag, an earth wire, an electric heating pipe, a damping isolation signal device and an anti-creeping protective device; the damping isolation signal device comprises a hollow insulating pipe communicated with the inner bag, further comprises a signal collecting piece having a contact surface that contacts the water flowing from the insulting pipe to the inner bag or the water phase flowing from the inner bag to the insulating pipe, collecting a level signal and outputting it to the anti-creeping protective device; the anti-creeping protective device collects a standard level signal of the water in the inner bag and compares it with the level signal for the difference. When the signal difference exceeds the safety voltage 24V, the power supply is cut off. The invention matches the anti-creeping protective device by the level signal generated by the reducing the voltage for the insulating pipe to process anti-creeping protection for the water heater; the length of the insulating pipe is far less than that in the ''anti-creeping wall'' and the structure is artful without taking space and convenient to disassemble.

The invention discloses an integrated mine communication system based on a code division multiple access (CDMA) technology. According to the system, signal transmission equipment is connected with a CDMA base station for realizing data exchange; a surface scheduling module, the signal transmission equipment, the CDMA base station and a mine near-end signal converter are arranged on the ground; the CDMA base station and the mine near-end signal converter are connected to realize signal conversion; the mine near-end signal converter is respectively connected with multiple underground communication modules through an optical fiber network; the multiple underground communication modules are respectively arranged in a corresponding mine laneway; and each underground communication module comprises at least one mine wireless signal converter used for signal conversion and an intrinsic safety type CDMA voice terminal which is connected with the mine wireless signal converter through a CDMA network. The system can support the voice, data, short message transmitting and scheduling and PTT functions, the network is difficultly offline in the mine laneway working environment, the interference resistance is high, the voice communication effect is good, the underground wireless coverage effect is good, the system can be independently operated, and group customer networking can be realized.

The invention discloses a mobile terminal smoke monitoring method and device and a storage medium. A smoke sensor is arranged on a mobile terminal. The mobile terminal smoke monitoring method includes: detecting smoke concentration in air in space of the mobile terminal and space within the default range of the mobile terminal through the smoke sensor; when the smoke concentration in the air within the default range of the mobile terminal is greater than an alarm threshold value, performing smoke alarm in a default mode. Mobility of the mobile terminal is utilized, the scope of application ofsmoke alarm is expanded, where there is the mobile terminal, where there is the smoke alarm function, and personnel safety coefficient is greatly increased; through the alarm help seeking function, and help seekers can be aware of the smoke concentrate of the site and can assist in handling conveniently.

The invention provides a portable direct-current power supply which is used for temporary standby application and used for a test. The portable direct-current power supply comprises a lightning protection device, an alternating-current distribution unit, a charging module, a voltage reduction unit, a control circuit and a centralized monitoring and insulating monitoring unit. The portable direct-current power supply is suitable for medium and small power plants, hydroelectric power stations and all types of transformer substations in electric systems and is suitable for other users, such as petrochemical enterprises, mines and railways, utilizing direct-current devices. The portable direct-current power supply can provide an experiment direct-current power supply, can temporarily replace an existing direct-current power supply, is suitable for serving as a standby direct-current power supply for relay protection and fault illumination for instruments, meters, and the like in a secondary circuit. In order to meet the requirement of on-site running, the portable direct-current power supply can not only serve as a direct-current power supply but also monitor overvoltage or voltage shortage of a bus, and can be connected with a local monitoring system through a 485 remote communication interface so that the portable direct-current power supply can be monitored remotely and on site.

The invention provides an NFC management method and system for a safety helmet of a shared electric vehicle. The system comprises a safety helmet embedded with an NFC electronic tag, a storage box anda vehicle lock device. An NFC control module, a first driving module, a storage box locking mechanism and an antenna are arranged in the storage box; the safety helmet is fixedly placed in the storage box; the vehicle lock device comprises a main control module, and the main control module is used for correspondingly sending an unlocking / locking instruction according to a received unlocking / locking request signal; the NFC control module is in signal connection with the NFC electronic tag through an antenna, and is used for receiving the unlocking / locking instruction sent by the main control module, reading identification information of the NFC electronic tag, and sending unlocking / locking feedback information when the identification of the NFC electronic tag is correctly associated; and the first driving module receives the unlocking / locking feedback information to control the opening / closing of the storage box locking mechanism. According to the invention, the loss risk of the safetyhelmet of the shared electric vehicle can be effectively reduced, and the safety helmet is properly stored.

The invention discloses a split-type explosion-proof air conditioner, which is characterized in that electronic devices utilized by the entire air conditioner are uniformly arranged in an electric appliance box in an outdoor machine, the electric appliance box is sealed, positions where a key electronic device and an electric appliance outgoing port are located are sealed in a pouring way, the explosion-proof and explosion insulation treatment is further carried out on the electric appliance box and elements inside the electric appliance box, a fire source can be effectively separated from a dangerous environment, and the overall explosion resistance of the air conditioner in a combustible and explosive environment can be enhanced; and meanwhile, a function for detecting and alarming the concentration of a dangerous combustible / explosive gas is added on the air conditioner, so that the application environment of the air conditioner can be monitored in real time.

The invention relates to a crossing vehicle guide sign device of blocked roads and a control method and application thereof. The crossing vehicle guide sign device comprises a first judgment module, a first control module, a second control module and a display module. The first judgment module is connected with the first control module and the second control module respectively; and the first control module and the second control module are respectively connected with the display module. A light emitting diode (LED) display element is adopted for the display module and has two working states, namely driving-out port marking and driving-in port marking. The control method of the crossing vehicle guide sign device is used for controlling changing states of the changeable sign device located at crossings of the express way. By adopting the crossing vehicle guide sign device of blocked roads and the control method and application thereof, reliable and effective control, directing and management for traffic flow at the crossings of the express way can be achieved, the problem of resource utilization waste of the crossings of the express way and signal devices at the crossings can be solved, express way construction cost is reduced, driving operation difficulty of drivers at the crossings of the express way is reduced, and express way traffic efficiency and safety coefficient are improved.

The invention provides an auxiliary alarming device of a railway grade crossing. The auxiliary alarming device comprises infrared detector sets and an alarm unit, wherein the infrared detector sets comprise a first detector set and a second detector set, the first detector set is arranged on a roadway gate of the crossing, crossing space, 300mm-800mm vertically away from the ground, below the roadway gate is detected, and the alarm unit is controlled to give an alarm when it is detected that people exist; the second detector set is arranged on the ground on two sides of a rail of the crossing, crossing space, with the vertical distance from the ground to the top of a steel rail being 300mm, below the roadway gate is detected, and the alarm unit is controlled to give an alarm when it is detected that an obstacle exists. The auxiliary alarming device is simple in structure, significant in effect, direct and high in efficiency, enhances railway grade crossing alarming functions, improves highway and railway safety conditions, and further improves safety performance of the railway grade crossing; meanwhile, it is guaranteed that transport capacity of the railway can be improved and safe and punctual running transportation is achieved.

The invention discloses a train set overloading detection system, which comprises a pressure collecting device, a braking control unit, a train network system main controller and a man-machine interface. The pressure collecting device collects pressure values of bogie air springs of all carriages of a train set; the braking control unit converts the pressure values of all the carriages into the single-carriage weights of all the carriages; the train network system main controller obtains the single-carriage actual weights of all the carriages and the whole train actual weight of the train setaccording to the single-carriage weights of all the carriages and the rotation mass of all the carriages, and judges whether all the carriages and the train set are overloaded or not according to thepreset single-carriage overloading alarm threshold value and a whole train overloading alarm threshold value; and the man-machine interface displays overloading information to a driver and passengersaccording to the judgment result. According to the train set overloading detection system, the train set overloading detection and alarm functions are additionally achieved on the basis of not changing hardware. The invention further provides a train set overloading detection method, which has the beneficial effects.

The invention relates to a high-voltage early-warning insulation glove. The high-voltage early-warning insulation glove is characterized in that a high-voltage sensing alarm is fitted to the back of the high-voltage early-warning insulation glove and comprises an alarm shell and a high-voltage sensing alarm circuit therein; the high-voltage sensing alarm circuit comprises a power source module, a microprocessor module, a high-voltage sensor and a signal conditioning circuit, the power module is connected with the microprocessor module and the signal conditioning circuit to supply power for them, the high-voltage sensor, the signal conditioning circuit and the microprocessor module are sequentially connected, and the microprocessor module is connected with a buzzer on the surface of the alarm shell through an output port. The high-voltage early-warning insulation glove is capable of sensing voltage of lines nearby, when the voltage is higher than set voltage, the buzzer is controlled in time to send sound alarm, in this way, operators are always kept within a safety range, accidents of the power grid are reduced, and the high-voltage early-warning insulation glove is widely applicable to hot-line places of the power system and the high-voltage test field.

The invention discloses a protection circuit and a protection method for preventing hot plug voltage surge, and relates to the technical field of circuit design. The circuit comprises a power MOS field effect transistor, a photoelectric coupler D2 and an impedance resistor. The power MOS field effect transistor comprises an N-channel power MOS tube Q3 and a P-channel power MOS tube Q2. The cathodeof the input end of the photoelectric coupler D2 is connected with the G electrode of the power MOS tube Q3, and the output end of the collector electrode of the photoelectric coupler D2 is connectedwith the G electrode of the power MOS tube Q2. The impedance resistors comprise a low-impedance resistor R2 and high-impedance resistors R3 and R4. According to the embodiment, the surge protection assembly TVS on a traditional hot plug line is replaced by the protection circuit, the reaction speed of surge protection of the input end is effectively improved, an alarm function during tiny surge is added, and the problem that a rear-end assembly is damaged due to the fact that the surge protection device is too slow in reaction is avoided.

The invention provides a composite electrical fire monitoring detector and a monitoring method thereof. The monitoring detector comprises an input voltage detector, a residual current transformer, a first current transformer, a second current transformer, a third current transformer, a fourth current transformer, a temperature sensor, a first resistance-capacitance filter network, a second resistance-capacitance filter network, a third resistance-capacitance filter network, a 4th resistance-capacitance filter network, a 5th resistance-capacitance filter network, a 6th resistance-capacitance filter network, a two-channel analog front end, a four-channel analog front end, an amplification filtering unit, a microprocessor, an output control and LED indicating unit, a liquid crystal display unit, an NB-IOT module unit, a storage unit, an RS485 communication interface unit and an AC / DC power conversion unit. The monitoring method is realized by using the monitoring detector. Therefore, false alarming caused by the common mode interference signal is reduced; the accuracy of the residual current and three-phase current effective value measurement is improved; and the high measurement accuracy of the high-low-end signals is ensured while the measurement range is extended.

The invention provides a transfusion method and a transfusion pipe heating method and system. A body temperature measuring module is utilized to measure the temperature of a human body, meanwhile a transfusion pipe temperature measuring module is utilized to measure the temperature of fluid at the outlet end of the transfusion pipe, then a single chip microcomputer controls the transfusion pipe heating system to heat the transfusion pipe according to the temperature difference to enable the fluid temperature at the outlet end of the transfusion pipe to change with the temperature of a human body to achieve the effect that the temperature of the fluid at the outlet end of the transfusion pipe, and the problem that a transfusion patient has adverse reaction caused by improper temperature in the transfusion treatment process is solved.

The invention provides an adjustable detection device for ambient air detection, which comprises a detection case, a mounting base I, an alarm, a mounting base II, an air quality detection sensor, a case cover, a mounting plate, a storage battery, an air quality detection host and a wireless communication module, wherein the left end of the detection case is in screw connection with the mounting base I; and an alarm is connected to the left side of the mounting base I through screws. Through arrangement of a connecting pipe, a supporting column, a dismounting bolt, a height moving base, a movable pipe, a vertical rod and a movable bolt, height adjustment according to detection requirements is facilitated, the air detection effect is guaranteed, the movable bolt is loosened, the supportingcolumn is held by hand to move the height moving base, and after the height position is determined according to the position of the movable pipe on the outer wall of the vertical rod, the movable boltis fastened, the height adjustment detection requirement is met, the connecting pipe and the supporting column can be separated by loosening the dismounting bolt, components in the case can be maintained and detected conveniently, and operation convenience is guaranteed.

The invention aims to provide an unattended check gate controller and a control method thereof. The controller comprises a single chip microcomputer which is connected with a relay, a code disk, a gate limiting switch, an infrared sensor, a storage, an internet access module and a 485 module, wherein the 485 module is connected with a solar controller, a weather / hydrology sensor and a touch screen through a 485 bus; the single chip microcomputer acquires a dispatching center operation instruction through the internet access module, converts a travel parameter into a count value, controls the relay to operate, reads the count value of the code disk in real time to acquire the state of the gate limiting switch, shuts off the relay when the count value reaches a preset value, protects a motor and a gate and transmits a real-time opening value of the gate to a dispatching center platform; the infrared sensor communicates with the single chip microcomputer in real time; when an irrelevant person gets close to a control gate chamber, interruption is triggered, the controller transmits detected infrared state information to a software platform, and whether an alarm is given out is judged through software.

The invention discloses a multifunctional intelligent eye patch, and belongs to the technical field of sleep aids. The eye patch comprises a power supply, an elastic girdle and an electric wire. An elongated shading belt is arranged on the elastic girdle, a plurality of side massage heads are uniformly arranged on two sides of the inner side face of the shading belt, a plurality of middle massageheads are arranged in the middle of the inner side face of the shading belt, and a shading sleeve covers the shading belt, and a girdle sleeve covers the elastic girdle. The eye patch solves the problem that an existing eye patch is single in structure and uncomfortable to wear. The eye patch is simple in structure and low in cost and has functions of acupuncture point massage and the like, lightcan be effectively shaded and discomfort at the back of an ear can be eliminated when a user wears the eye patch in sleep, and practicability is greatly enhanced.

Alarm system for motor vehicle, incorporating an alarm control unit which is powered by a main battery of the motor vehicle, a siren unit likewise powered by the main battery, and a back-up battery in the siren unit which is arranged to power the siren unit upon failure of the power supply from the main battery. To simplify and make such an alarm safer, it is proposed inter alia that upon said failure of power supply from the main battery the back-up battery be arranged to automatically power also the alarm control unit.

The invention discloses an easy-to-carry miniature unmanned aerial vehicle and a using method thereof, and relates to the technical field of unmanned aerial vehicles. The portability and the use convenience are improved. The easy-to-carry miniature unmanned aerial vehicle comprises a vehicle body, four supporting frames distributed at equal intervals are correspondingly fixed to the outer wall ofthe periphery of the vehicle body through screws, vehicle arms are rotationally connected with one ends of the supporting frames, rotating shafts are installed on the outer walls of one ends of the vehicle arms through bearing pedestals, and wings are fixed to the outer walls of one ends of the rotating shafts through screws. The using method of the unmanned aerial vehicle comprises the followingsteps that when the unmanned aerial vehicle is taken for use, fixed sliding columns are pulled out of a second inserting groove and a first inserting groove; and the fixed sliding columns are continuously pressed, and the vehicle arms are rotated, so that the wings are stretched to designated positions. By arranging the supporting frames, the vehicle arms and other structures, the wings can be folded near the vehicle body, the overall space occupancy rate is reduced, and therefore the portability is improved; and by arranging structures such as a fixed sliding seat and the fixed sliding columns, the vehicle arms can be reliably fixed, and the structural firmness is improved.

The invention discloses an intranet information protection device based on a hardware waterproof wall. The device comprises a hardware control platform and a grading protection unit. The hardware control platform comprises an installation protection box. A wire connection port is embedded in the front surface of the installation protection box. A core processor is installed in the hardware control platform. The core processor is connected with a peripheral circuit. The network port of the core processor is connected with an Ethernet control module. The input end of the Ethernet control module is connected with a network transformer which is connected to the wire connection port. The grading protection unit is arranged in the core processor and comprises a user port layer, a safe service layer and a function module layer from top to bottom. The user port layer is connected with a physical port. The core processor is also connected with an intelligent alarm unit. According to the invention, through the combination of the software and the hardware, and the grading protection, the alarm function is added, the overall protection performance is effectively improved and user information safety is protected.

The invention relates to a charging technology for an unmanned aerial vehicle, specifically to a border defense patrol unmanned aerial vehicle wireless charging system with an alarming function. The border defense patrol unmanned aerial vehicle wireless charging system comprises a processor, wherein the processor comprises a charging platform transmission unit, an unmanned aerial vehicle receiving unit and a ground control unit; the charging platform transmission unit comprises a power supply module, a first information modulation module, a power control module, an inversion module, a controller a, a first current detection module, a first information demodulation module, and a transmitting coil and a compensation circuit thereof which are connected mutually; a micro test coil is arranged above the transmitting coil and the compensation circuit thereof; the unmanned aerial vehicle receiving unit comprises a receiving coil and a compensation circuit thereof, a second information modulation module, a rectifying module, a controller b, a second current detection module and an onboard battery which are connected mutually; and the ground control unit comprises a second information demodulation module, an unmanned aerial vehicle control module and an alarming module which are connected mutually. The wireless charging system can control the charging time and charging place of unmanned aerial vehicles, so that the charging platforms with limited quantity can be efficiently utilized by multiple unmanned aerial vehicles.

The invention relates to the technical field of articles of daily use, and more specifically relates to a luggage case with an alarm function. The luggage case comprises a luggage case body (1), rollers (2), drawbars (3), handles (4), a signal receiver (5), an alarm (6) and a battery case; the luggage case is characterized in that rollers (2) are arranged at the periphery of the bottom of the luggage case body (1); the handles (4) are connected on the right side and the center of the upper top surface; drawbars (3) are arranged in the center at the edge of the upper top surface; the signal receiver (5) and the alarm (6) are arranged at one corner of the right end; and the battery case (7) is arranged below the signal receiver (5). The luggage case with the alarm function disclosed by the invention is simple in structure and reasonable in configuration, has the alarm function and the reminding function and is convenient for travelling of people.

The invention provides an airport landing aircraft interval management method. The airport landing aircraft interval management method comprises the steps of obtaining aircraft runway distribution, an approach sequence, an interval type, aircraft performance and weather information; generating an aircraft track sign; calculating and generating five-side position prompts of the aircraft according to the motion parameters of the five-side aircraft; according to the actual flight path position of the aircraft and the five-side position prompts, initial interval prompting is carried out; according to the actual flight path position of the aircraft and the five-side position prompts, grounding interval prompting is carried out; and continuously monitoring flight data of each aircraft in the pentagonal flight process, and carrying out pentagonal operation efficiency analysis and system optimization. The invention also provides an airport landing aircraft interval management method and a storage medium. According to the technical scheme provided by the invention, visual and digital five-side interval allocation suggestions are provided for controllers, fine management of five-side intervals is assisted, and the five-side operation efficiency is improved.

The invention discloses a combined encryption lock and belongs to the field of locks and lock accessories. The combined encryption lock aims at solving the problems that in the prior art, a lockset ispoor in antitheft performance, low in reliability and difficult to mount and refit. The combined encryption lock comprises a lock face disc. A lock face hole is formed in the middle of the lock facedisc. An inner disc is arranged in the lock face hole. A gap is formed between the inner diameter of the lock face disc and the outer diameter of the inner disc and internally provided with a clampinglock. When the clamping lock is unlocked, the inner disc can rotate. The inner disc is provided with a T-shaped block. The T-shaped block comprises a long plate and a short plate, wherein the long plate is perpendicular to the short plate. A lock hole is formed in the middle of the long plate and penetrates the whole lock face disc. The side face of the long plate is provided with a fingerprint collector. The side, far away from the long plate, of the short plate is provided with a finger vein collector. The fingerprint collector is electrically connected with a processor and a storer. The finger vein collector is electrically connected with the processor and the storer. The processor further controls a switch of the clamping lock. The combined encryption lock is applicable to refitting of an antitheft door or window.

The invention relates to a device for monitoring invasion into a direct current by an alternating current based on ripple analysis. The device comprises a casing. A microcontroller is installed in the casing, the output end of the microcontroller is connected with a touch screen and a state indicator lamp, the left side of the microcontroller is connected with a monitoring modulator, and the touch screen is provided with an on-line insulating monitoring display area and a main menu display area. The on-line insulating monitoring display area comprises a busbar voltage value display area, a positive busbar voltage value display area and a negative busbar voltage value display area which are located on the left side of the touch screen, and a positive earth resistance value display area, a negative earth resistance value display area and an alternating current invasion value display area which are located on the right side of the touch screen. The voltage value of the alternating current invading the direct current can be displayed accurately, and when the voltage value of the alternating current invading the direct current is too large, a warning lamp gives a light alarm. The device has the advantages that a function of measurement, recording and warning against faults of invasion into the direct current by the alternating current is added, the positive busbar ground impedance and negative busbar ground impedance are calculated accurately, and the device further has a voltage monitoring function and is convenient to use.

The invention discloses a vehicle-mounted alarming method and system aiming at communication in a petrol station. The method comprises the following steps that (1) intelligent early warning is performed according to positioning information transmitted by a positioning system; (2) a central control system is analyzed and controlled by a controller to carry out electromagnetic wave sensor intelligent alarm or driving behavior identification intelligent alarm according to the information transmitted by a detection system; and (3) the central control system is controlled to carry out intelligent shielding by the controller according to the positioning information transmitted by the positioning system; the system comprises the controller, the detection system, the positioning system, the central control system and a working power supply, wherein the controller is responsible for receiving information transmitted by the positioning system and the detection system and making control judgment,the positioning system is responsible for judging whether the automobile positioning is in a gas station range or not, and the central control system is responsible for making early warning, alarmingand shielding the incoming call and the out-going call of a Bluetooth phone. According to the vehicle-mounted alarming method and system, effective intelligent early warning, intelligent alarming andintelligent shielding can be carried out on the automobile in the gas station range, so that the safety of the gas station is ensured.

The invention discloses an automatic warning device based on solar energy charging, the device comprises a base arranged on the top of a vehicle, a fixed platform is connected above the base, the outer wall of the fixed platform is wrapped by a solar energy charging panel, an alarm is fixedly connected above the fixed platform, the battery pack of the alarm is connected with the solar energy charging panel, a telescopic pole is connected between the fixed platform and the base, the upper end of the telescopic pole is fixed to the bottom of the fixed platform, the lower end of the telescopic pole is rotatably connected with the base, and the alarm is connected with the control system for intelligently controlling the switch of the alarm. According to the invention, the alarm function of the alarm is improved through changing the charging mode, the mounting structure and the control system of the alarm, and the alarm efficiency is improved.