Wireless elevator calling equipment based on self power generation

Abstract

The wireless elevator calling equipment comprises a self-generating device and a main control board, an elevator calling button is arranged at the input end of the self-generating device, and the elevator calling button can be pressed by external force to drive the self-generating device to work so as to generate electric energy; a power management module, a main control module and a wireless communication module are integrated on the main control board; the output end of the self-generating device is electrically connected with the main control module and the wireless communication module through the power management module. According to the wireless elevator calling equipment based on self power generation, an external power source is replaced by the self power generation device, the problems of charging and replacing of a battery are avoided, maintenance of a system is simplified, meanwhile, a wired calling mode is replaced by the wireless communication technology, the requirement of an elevator calling system for cable laying is lowered, and the service life of the elevator calling system is prolonged. The wiring amount in the elevator installation process is greatly reduced, and the construction difficulty and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator calling control, in particular to a wireless elevator calling device based on self-generation. Background Art

[0002] In the prior art, with the development of social economy, the number of high-rise buildings is increasing, and the demand for elevators is also increasing. At the same time, the construction volume of elevator equipment is also increasing, and the higher the floor, the higher the difficulty and cost of elevator construction. In the construction process of the elevator, the traditional wired elevator call system needs to lay out a large number of signal lines and power supply lines, which brings great difficulties to the installation and subsequent maintenance of the elevator. Especially for high-rise elevators, the initial installation of the elevator requires vertical wiring of dozens or hundreds of meters. Not only is the line layout difficult, but it is also easy to cause line damage during the construction process. In addition, after the completion of the elevator, the maintenance of the wired system requires the disassembly of the signal line, which will also cause certain damage to the building structure.

[0003] Furthermore, for high-rise buildings, the wired elevator call system needs to be wired across multiple floors, which will further increase the wiring length and wiring difficulty. In addition, high-rise buildings have high requirements for the electromagnetic environment, and the wired elevator call system is easily interfered by the external environment.

[0004] In summary, the application of traditional wired elevator call systems in high-rise and super-high-rise buildings has problems such as difficult wiring construction and poor system anti-interference, which cannot meet the development needs of building elevators. Summary of the invention

[0005] In order to solve the above problems, the utility model provides a wireless elevator calling device based on self-generation, which reduces the amount of wiring during elevator installation and reduces the construction difficulty and cost.

[0006] In order to achieve the above-mentioned purpose, the utility model is designed with a wireless elevator calling device based on self-generation, including a self-generation device and a main control board. The input end of the self-generation device is provided with an elevator calling button, and the elevator calling button can drive the self-generation device to work to generate electric energy under the pressure of an external force;

[0007] The main control board is integrated with a power management module, a main control module and a wireless communication module;

[0008] The output end of the self-generating device is electrically connected to the main control module and the wireless communication module through the power management module;

[0009] Wherein, the power management module is used to convert and adjust the electric energy output by the self-generating device into the working voltage of the main control module and the wireless communication module;

[0010] The main control module is a programmable MCU chip, and is configured to detect that the elevator call button is pressed, connect the power output by the self-generating device and generate an encrypted elevator call signal with an address code and send it to the wireless communication module;

[0011] The wireless communication module is used to send the encrypted elevator call signal with the address code output by the main control module to the external elevator control system in a wireless communication manner.

[0012] In order to expand the communication range of elevator call signals, it also includes:

[0013] An energy storage device, used to store the electric energy generated by the self-generating module, and its output end is electrically connected to the main control module and the wireless communication module;

[0014] The signal relay module is electrically connected to the main control module and has an on state and an off state. In the on state, the signal relay module can receive an encrypted elevator call signal with an address code sent by other wireless elevator call devices, and forward it to the external elevator control system through wireless communication.

[0015] In order to meet the wireless communication requirements, the wireless transmission mode adopted by the wireless communication module and the signal relay module is a 433MHz industrial frequency signal.

[0016] In order to adapt to different building structures or specific communication requirements, a first dial switch is provided on the main control board, and the first dial switch is used to adjust the on state or off state of the signal relay module.

[0017] In order to make the relay function of the signal relay module available, the condition for the main control module to detect that the elevator call button is pressed is configured as the number of times the elevator call button is pressed N times, wherein the first N-1 presses of the elevator call button are used to drive the self-generating device to generate electrical energy and store it in the energy storage device, and the Nth press of the elevator call button is used to trigger the MCU chip of the main control module to power on and activate.

[0018] In order to ensure that each module can obtain appropriate power support, the power management module includes a rectifier and filter unit, a step-down unit and a power conversion unit. The rectifier and filter unit includes a rectifier bridge, a first filter electrolytic capacitor and a first filter chip capacitor, which are used to convert the alternating current generated by the self-generating device into a direct current power supply and filter the converted direct current power supply; the step-down unit includes a DC-DC conversion chip and a filter capacitor, which are used to reduce the voltage output by the rectifier and filter unit to the working voltage of the energy storage device and store the power in the energy storage device; the power conversion unit includes a power conversion chip, a second filter electrolytic capacitor and a second filter chip capacitor, which are used to further reduce the voltage of the energy storage device and convert it into the working voltage of the main control module and the wireless communication module.

[0019] A further solution is that the energy storage device includes but is not limited to a supercapacitor or a lithium battery.

[0020] In order to adapt to different scenarios or requirements, the main control module generates an encrypted elevator call signal with an address code as follows:

[0021] The MCU chip of the main control module is pre-written with a preset address code;

[0022] Alternatively, the main control module is electrically connected to a second dip switch, which is a six-bit binary coding switch, and the MCU chip is integrated with an analog-to-digital conversion module for detecting the sampling voltage divider value of the front and rear end resistors of the dip switch to obtain the address code set by the second dip switch.

[0023] In order to avoid relying on external power supply, the self-generating device includes a first spring, a magnetic bar, a second spring and a generating coil. The magnetic bar is arranged in the generating coil, the elevator call button is connected to the upper end of the magnetic bar through the first spring, and the lower end of the magnetic bar is connected to the main control board through the second spring, so that when the elevator call button is pressed, the magnetic bar can be driven to move in the generating coil to cut the magnetic lines.

[0024] The wireless elevator calling device based on self-generation designed by the utility model adopts a self-generation device instead of an external power supply, thereby avoiding the problem of charging and replacing batteries, thereby simplifying the maintenance of the system. At the same time, the wireless communication technology is adopted to replace the wired calling method, which reduces the demand for cable laying of the elevator calling system, greatly reduces the amount of wiring during the elevator installation process, and reduces the construction difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural block diagram of Embodiment 1 of the present utility model;

[0026] Figure 2 It is a schematic diagram of the circuit structure of the utility model;

[0027] Figure 3 This is a schematic diagram of an installation of the utility model;

[0028] Figure 4 It is a structural block diagram of embodiment 2 of the present utility model.

[0029] Among them: self-generating device 10, elevator call button 11, first spring 12, magnetic rod 13, second spring 14, generating coil 15, power management module 20, rectifier bridge 21, first filter electrolytic capacitor 22, first filter chip capacitor 23, DC-DC conversion chip 24, filter capacitor 25, power conversion chip 26, second filter electrolytic capacitor 27, second filter chip capacitor 28, main control module 30, wireless communication module 40, energy storage device 50, signal relay module 60, first dial switch 70, second dial switch 80. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] Example 1.

[0032] like Figure 1-3 As shown, the wireless elevator calling device based on self-generation described in this embodiment includes a self-generation device 10 and a main control board. The input end of the self-generation device 10 is provided with an elevator calling button 11. The elevator calling button 11 can drive the self-generation device 10 to work to generate electric energy under the pressure of an external force;

[0033] The main control board is integrated with a power management module 20, a main control module 30 and a wireless communication module 40;

[0034] The output end of the self-generating device 10 is electrically connected to the main control module 30 and the wireless communication module 40 through the power management module 20;

[0035] The power management module 20 is used to convert and adjust the electric energy output by the self-generating device 10 into the working voltage of the main control module 30 and the wireless communication module 40;

[0036] The main control module 30 is a programmable MCU chip, and is configured to detect that the elevator call button 11 is pressed, connect the electric energy output by the self-generating device 10 and generate an encrypted elevator call signal with an address code and send it to the wireless communication module 40; the wireless communication module 40 is used to send the encrypted elevator call signal with an address code output by the main control module 30 to the external elevator control system in a wireless communication manner.

[0037] When implementing it, Figure 3As shown, a wireless elevator calling device 100 provided in this embodiment is installed on each floor of the building (generally at the elevator lobby), and the external elevator control system 200 is located in the elevator shaft (generally at the top of the building shaft). As long as the wireless communication distance between the wireless communication module 40 and the elevator control system 200 is within the effective range, each wireless elevator calling device 100 has an address code corresponding to the floor it is located on.

[0038] When working, the user presses the elevator call button 11 at the target floor to drive the self-generating device 10 to generate electricity. After the main control module 30 detects the pressing signal of the elevator call button 11, its MCU chip connects to the power output of the self-generating device 10 to activate, and sends the encrypted elevator call signal containing the address code of the user's floor to the wireless communication module 40. After receiving the elevator call signal, the wireless communication module 40 sends the encrypted elevator call signal with the address code to the external elevator control system 200 through wireless communication. After receiving the encrypted elevator call signal, the elevator control system 200 parses the floor where the address code is located, and instructs the elevator to run to the target floor to pick up the user to the floor he wants to go to, completing the use of this self-generated wireless elevator call system. Here, it is common knowledge in the field that the elevator control system 200 enables the elevator to parse the address code and run to the corresponding floor, which will not be repeated here. In addition, in this embodiment, after the elevator is dispatched successfully, the elevator control system 200 returns an encrypted elevator call success signal with an address code through wireless communication. After the wireless communication module 40 of the original wireless elevator call device 100 receives the elevator call success signal feedback, the LED light on the main control board electrically connected to the main control module 30 can be controlled by the MCU chip to prompt the user that the elevator call is successful in different color states or flashing modes, thereby enhancing the user's perception of the elevator call request. In this embodiment, the MCU chip model of the main control module 30 is Si1083 (integrated radio frequency).

[0039] In summary, the wireless elevator calling device based on self-generation provided in this embodiment avoids the problem of battery charging and replacement by adopting a self-generation device instead of an external power supply, thereby simplifying the maintenance of the system. At the same time, the wireless communication technology is used to replace the wired calling method, which reduces the demand for cable laying of the elevator calling system, greatly reduces the amount of wiring during the elevator installation process, and reduces the construction difficulty and cost.

[0040] Example 2.

[0041] like Figure 4 As shown, the wireless elevator calling device based on self-generation described in this embodiment is different from that in Embodiment 1 in that, in order to expand the communication range of the elevator calling signal, it also includes:

[0042] The energy storage device 50 is used to store the electric energy generated by the self-generating module, and its output end is electrically connected to the main control module 30 and the wireless communication module 40;

[0043] The signal relay module 60 is electrically connected to the main control module 30 and has an on state and a off state. In the on state, the signal relay module 60 can receive an encrypted elevator call signal with an address code sent from other wireless elevator call devices, and forward it to the external elevator control system via wireless communication.

[0044] Utilizing this structural design, for high-rise buildings, in order to prevent the wireless communication range of the wireless communication module 40 of a single wireless elevator call device 100 from failing to cover the area where the external elevator control system 200 is located, that is, the encrypted elevator call signal with an address code sent by the wireless communication module 40 through wireless communication after receiving the elevator call signal cannot be received by the external elevator control system 200, when constructing the elevator call system, at least one wireless elevator call device 100 can be pre-selected within the wireless communication coverage range of the wireless communication module 40 in the wireless elevator call device 100 installed on each floor (that is, the farthest effective distance of the wireless signal sent by a single wireless communication module 40), and its signal relay module 60 can be set to an on state, and the on-state signal relay module 60 can be used as a signal relay point to achieve the expansion of the communication range of the elevator call signal. For example: suppose that in a high-rise building, there are several wireless elevator call devices 100 with the signal relay module 60 turned on. When a user presses the elevator call button 11 on floor 10 (address code 10), but the area where the external elevator control system 200 is located exceeds the direct communication range of the wireless communication module 40 corresponding to floor 10, when the signal relay module 60 receives the signal, it verifies the validity of the signal and stores it. Then, the signal relay module 60 forwards the stored valid signal to the next wireless elevator call device 100 through its own wireless communication module, such as another wireless elevator call device 100 on floor 14 that is equipped with a signal relay module 60. After receiving the signal, this device forwards the signal to the next device until the signal is transmitted to a device that can cover the area where the external elevator control system 200 is located or directly reaches the external elevator control system 200 to realize the transmission of the elevator call signal. Here, this process can be completed through a specific forwarding protocol or communication protocol. For example, the encrypted elevator call signal with an address code sent by the wireless elevator call device 100 also has device type information. The signal relay module 60 confirms whether it is a signal sent by the wireless elevator call device 100 or a signal sent by the elevator control system 200 by identifying the device type; if it is a signal sent by the wireless elevator call device 100, the signal transfer unit will send it again. Similarly, if the device type is identified as the mainboard of the elevator control system 200, the registration success signal will be forwarded, and the corresponding wireless elevator call device 100 will compare the identified device type with the replied address. If it is the local wireless elevator call device 100, the wireless elevator call device 100 corresponding to the replied address will respond with a successful registration.

[0045] In a further implementation of this embodiment, the condition for the main control module 30 to detect that the elevator call button 11 is pressed is configured as the number of times the elevator call button 11 is pressed N, wherein the first N-1 times of pressing the elevator call button 11 are used to drive the self-generating device 10 to work to generate electric energy and store it in the energy storage device 50, and the Nth time of pressing the elevator call button 11 is used to trigger the MCU chip of the main control module 30 to be powered on and activated. Specifically, in this embodiment, the working power supply of the wireless elevator call device 100 is provided by the energy storage device 50, and the triggering of the main control module 30 is achieved by detecting the number of times the elevator call button 11 is pressed. Taking N=5 times as an example, the specific operation of the user calling the elevator is to press the elevator call button 5 times continuously, wherein the first 4 times of pressing the elevator call button 11 are to generate electric energy and store it in the energy storage device 50, and the last 5th time of pressing will trigger the generation and sending of the elevator call signal of the wireless elevator call device 100 (this detection of distinguishing the number of pressing times can be implemented by pre-programming in the MCU chip of the main control module 30, which is well known in the art). It is common knowledge that is known to all and will not be elaborated here), that is, more electricity can be generated and stored in the energy storage device 50 by pressing multiple times, which ensures that there is sufficient power supply for the subsequent elevator call signal sending, or when the wireless elevator call device 100 installed on a certain floor is used as a signal relay point (the signal relay module 60 on the corresponding floor is in the turned-on state), even if no user actively triggers the wireless elevator call device 100 on the corresponding relay floor, it can also ensure that the signal relay module 60 can normally forward the elevator call signal, thereby ensuring the availability of the relay function, and using the last press as the trigger condition to clarify the timing of the elevator call action and avoid misoperation.

[0046] Example 3.

[0047] The wireless elevator call device based on self-generation described in this embodiment is based on Embodiment 1 and Embodiment 2. In order to meet the wireless communication requirements, the wireless communication module 40 and the signal relay module 60 use a 433MHz industrial frequency signal as the wireless transmission method. The 433MHz industrial frequency signal performs well when penetrating obstacles and has a long propagation distance, and is suitable for environments such as elevator shafts where signal transmission is difficult. In addition, the 433MHz industrial frequency signal has low energy consumption, which helps to reduce the energy consumption of the wireless elevator call device 100.

[0048] In this embodiment, if Figure 2As shown, in order to adapt to different building structures or specific communication requirements, the main control panel is provided with a first dial switch 70, and the first dial switch 70 is used to adjust the on state or off state of the signal relay module 60. By setting the first dial switch 70, it is easier to control and manage the working state of the signal relay module 60 without having to adjust it through complex software or operation steps, so that the staff can complete the communication requirements for different building structures or specific requirements without having to master professional skills. In a further implementation of this embodiment, in order to reduce the hardware complexity, such as Figure 2 As shown, the wireless communication module 40 and the signal relay module 60 in the wireless elevator call device 100 are both integrated in the MCU chip of the main control module 30, and the first dip switch 70 is electrically connected to the MCU chip. The on and off of the first dip switch 70 can be used to switch whether the wireless communication module 40 has a relay function, that is, the signal relay forwarding function of the signal relay module 60 is assumed by the wireless communication module 40, and the communication unit (wireless communication module 40) and the relay unit (signal relay module 60) are no longer distinguished, which reduces the amount of peripheral hardware, reduces costs, and improves system reliability.

[0049] In this embodiment, if Figure 2 As shown, in order to ensure that each module can obtain appropriate power support, the power management module 20 includes a rectifier filter unit, a voltage reduction unit and a power conversion unit, wherein the rectifier filter unit includes a rectifier bridge 21, a first filter electrolytic capacitor 22 and a first filter patch capacitor 23, which are used to convert the AC power generated by the self-generating device 10 into a DC power supply and filter the converted DC power supply; the voltage reduction unit includes a DC-DC conversion chip 24 and a filter capacitor 25, which are used to reduce the voltage output by the rectifier filter unit to the working voltage of the energy storage device 50 and store the power in the energy storage device 50; the power conversion unit includes a power conversion chip 26, a second filter electrolytic capacitor 27 and a second filter patch capacitor 28, which are used to further reduce the voltage of the energy storage device 50 and convert it into the working voltage of the main control module 30 and the wireless communication module 40. Such a power management module 20 structural design helps to provide stable power support and effectively convert the electric energy generated by the self-generating device 10 into the appropriate voltage required by each module, while saving space and cost. In this embodiment, the model of the DC-DC conversion chip 24 is BL9362, the model of the power conversion chip 26 is XC6504, and the energy storage device 50 includes but is not limited to a super capacitor or a lithium battery.

[0050] In this embodiment, if Figure 2 As shown, in order to adapt to different scenarios or requirements, the main control module 30 generates an encrypted elevator call signal with an address code as follows:

[0051] A preset address code is pre-written in the MCU chip of the main control module 30;

[0052] Alternatively, the main control module 30 is electrically connected to a second dial switch 80, which is a six-bit binary coding switch. The MCU chip is integrated with an analog-to-digital conversion module for detecting the sampling voltage-divided value of the front and rear resistances of the dial switch to obtain the address code set by the second dial switch 80. In this way, the preset address code is solidified in the wireless elevator calling device 100 during the manufacturer's manufacturing process, and is not easy to change or lose, so it has high stability. The address code set by the dial switch can be set by the user to meet the user's specific communication needs. The second dial switch 80 is a six-bit binary coding switch, which can be regarded as a six-bit binary number. The resistance value of the different rear-end resistors is adjusted by turning the dial switch on or off, thereby adjusting the voltage-divided value of the front-end resistor 81 and the rear-end resistor 82. The analog-to-digital conversion module of the MCU chip samples the voltage-divided value to determine the on or off state of the second dial switch 80, and the six-bit binary combination address is obtained:

[0053] If the DIP switch is in position 1 and 4, the rear resistance value is:

[0054] Back-end resistor voltage division:

[0055] AD sampling value:

[0056] In this embodiment, if Figure 2 As shown, in order to avoid relying on external power supply, the self-generating device 10 includes a first spring 12, a magnetic rod 13, a second spring 14 and a generating coil 15. The magnetic rod 13 is arranged in the generating coil 15, and the elevator call button 11 is connected to the upper end of the magnetic rod 13 through the first spring 12, and the lower end of the magnetic rod 13 is connected to the main control board through the second spring 14, so that when the elevator call button 11 is pressed, it can drive the magnetic rod 13 to move in the generating coil 15 to cut the magnetic lines. With this structural design, when the user presses the elevator call button 11, the elevator call button 11 drives the magnetic rod 13 connected thereto to move downward through the first spring 12. At this time, the magnetic rod 13 moves vertically in the power generation coil 15, cutting the magnetic lines of force in the coil, and generates current according to the principle of electromagnetic induction. When the elevator call button 11 is released, the second spring 14 provides an upward reaction force to drive the magnetic rod 13 back to its original position. In this way, the magnetic rod 13 vibrates back and forth in the coil to cut the magnetic lines of force, so that the power generation coil 15 continuously outputs electrical energy, that is, it is achieved without relying on an external power supply or battery, thereby ensuring that the system has the ability to supply power independently.

[0057] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wireless elevator calling device based on self-generation, comprising a self-generation device (10) and a main control board, characterized in that: An elevator call button (11) is provided at the input end of the self-generating device (10), and the elevator call button (11) can drive the self-generating device (10) to work and generate electric energy when pressed by an external force; The main control board is integrated with a power management module (20), a main control module (30) and a wireless communication module (40); the output end of the self-generating device (10) is electrically connected to the main control module (30) and the wireless communication module (40) through the power management module (20); The power management module (20) is used to convert and adjust the electric energy output by the self-generating device (10) into the operating voltage of the main control module (30) and the wireless communication module (40); The main control module (30) is a programmable MCU chip and is configured to detect that the elevator call button (11) is pressed, connect the electric energy output by the self-generating device (10) and generate an encrypted elevator call signal with an address code and send it to the wireless communication module (40); The wireless communication module (40) is used to send the encrypted elevator call signal with the address code output by the main control module (30) to the external elevator control system in a wireless communication manner.

2. The wireless elevator calling device based on self-generation according to claim 1 is characterized in that include: An energy storage device (50) is used to store the electric energy generated by the self-generating module, and its output end is electrically connected to the main control module (30) and the wireless communication module (40); The signal relay module (60) is electrically connected to the main control module (30) and has an on state and an off state. In the on state, the signal relay module (60) can receive an encrypted elevator call signal with an address code sent from other wireless elevator call devices, and forward it to an external elevator control system by wireless communication.

3. The wireless elevator calling device based on self-generation according to claim 2 is characterized in that: The wireless transmission mode adopted by the wireless communication module (40) and the signal relay module (60) is a 433 MHz industrial frequency signal.

4. The wireless elevator calling device based on self-generation according to claim 2 is characterized in that: The main control board is provided with a first dial switch (70), and the first dial switch (70) is used to adjust the on state or the off state of the signal relay module (60).

5. The wireless elevator calling device based on self-generation according to claim 2 is characterized in that: The condition for the main control module (30) to detect that the elevator call button (11) is pressed is configured as the number of times the elevator call button (11) is pressed N times, wherein the first N-1 times of pressing the elevator call button (11) are used to drive the self-generating device (10) to work to generate electric energy and store it in the energy storage device (50), and the Nth time of pressing the elevator call button (11) is used to trigger the MCU chip of the main control module (30) to be powered on and activated.

6. The wireless elevator calling device based on self-generation according to claim 5 is characterized in that: The power management module (20) comprises a rectifier and filter unit, a voltage reduction unit and a power conversion unit. The rectifier and filter unit comprises a rectifier bridge (21), a first filter electrolytic capacitor (22) and a first filter chip capacitor (23), and is used to convert the alternating current generated by the self-generating device (10) into a direct current power supply, and filter the converted direct current power supply; the voltage reduction unit comprises a DC-DC conversion chip (24) and a filter capacitor (25), and is used to reduce the voltage output by the rectifier and filter unit to the working voltage of the energy storage device (50), and store the power in the energy storage device (50); the power conversion unit comprises a power conversion chip (26), a second filter electrolytic capacitor (27) and a second filter chip capacitor (28), and is used to further reduce the voltage of the energy storage device (50) and convert it into the working voltage of the main control module (30) and the wireless communication module (40).

7. The wireless elevator calling device based on self-generation according to claim 6 is characterized in that: The energy storage device (50) includes but is not limited to a super capacitor or a lithium battery.

8. The wireless elevator calling device based on self-generation according to any one of claims 1 to 7, characterized in that: The main control module (30) generates an encrypted elevator call signal with an address code as follows: A preset address code is pre-written into the MCU chip of the main control module (30); Alternatively, the main control module (30) is electrically connected to a second dip switch (80), the second dip switch (80) is a six-bit binary coding switch, and the MCU chip is integrated with an analog-to-digital conversion module for detecting the sampling voltage division value of the front and rear end resistors of the dip switch to obtain the address code set by the second dip switch (80).

9. The wireless elevator calling device based on self-generation according to claim 8 is characterized in that: The self-generating device (10) comprises a first spring (12), a magnetic bar (13), a second spring (14) and a generating coil (15); the magnetic bar (13) is arranged in the generating coil (15); the elevator call button (11) is connected to the upper end of the magnetic bar (13) through the first spring (12); the lower end of the magnetic bar (13) is connected to the main control board through the second spring (14), so that when the elevator call button (11) is pressed, the magnetic bar (13) can be driven to move in the generating coil (15) to cut the magnetic lines of force.

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