Floor and level recognition system and recognition method

Abstract

The present invention belongs to the field of elevators and discloses a floor and leveling identification system, comprising a leveling switch and a plurality of vertically arranged partitions, the partitions being arranged sequentially from bottom to top in the elevator shaft; the leveling switch being U-shaped and having two arms; the partition passing through the recess of the leveling switch when the leveling switch is raised or lowered; an RFID card being attached to the partition, and the partition being coated with a layer of magnetic conductive material; an RFID card reader being provided in one arm of the leveling switch. After repeated tests, we determined that the impedance of the coil in the RFID card reader is 50 to 70 ohms; the thickness of the magnetic conductive material layer is 0.18-0.22 mm; the relative magnetic permeability of the magnetic material in the magnetic conductive material layer is 45-55; the resonant frequency of the RFID card is 13.4 MHz to 14.2 MHz, which can realize sensitive transmission of information under the premise of a limited area. At the same time, the present invention also provides a floor and leveling identification method.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular to a floor and level recognition system and method. Background Art

[0002] In traditional elevator systems, leveling switches are often used to implement leveling sensing to ensure that the car can accurately stop at the leveling position of each floor. However, using leveling switches alone cannot obtain floor information. Before the elevator is put into normal use, it is often necessary to conduct hoistway learning by integrating leveling switches, terminal station signals, and encoders to accurately identify leveling and floors.

[0003] With the development of IoT technology and the urgent need for industry upgrades, the traditional elevator industry has also ushered in a wave of IoT transformation. Limited by the properties of special elevator equipment and the difficulty of modification, when adding IoT functions to traditional elevator systems, it is often impossible to deeply modify the original elevator system. Instead, it is only allowed to obtain elevator operating parameters without affecting the original elevator system. Among the many elevator operating parameters, "leveling position" and "floor position" are the two most basic parameters that must be accurately obtained.

[0004] Obtaining the "leveling position" is relatively simple. Simply add one or more sets of leveling switches to the elevator's existing leveling switches. However, obtaining the "floor position" also requires an additional floor reference. Currently, the common method for adding a floor reference is to install an additional set of induction switches on the car roof and a corresponding trigger device on the shaft, guide rail, or magnetic isolation plate at the reference level. However, this floor reference solution has the following prominent issues:

[0005] Complex installation:

[0006] Due to the limitations of car roof space and the diversity of structures, it is often necessary to install additional structural members that can support the floor benchmark.

[0007] Low reliability:

[0008] In a long-term operation environment of the car, additional structural parts are prone to position deviation, resulting in benchmark failure.

[0009] Easy to interfere with the original elevator system:

[0010] Some floor reference solutions are implemented by installing strong magnets on the magnetic isolation plate of the floor reference layer. However, if the elevator's original leveling switch uses a magnetic induction method, it is very easy to be interfered by this magnet, causing the elevator leveling failure.

[0011] High cost:

[0012] Both the installation cost and the material cost are relatively high, which is not conducive to promotion;

[0013] D1: CN101381042A discloses an elevator positioning method based on RFID technology, which is achieved through the following steps: corresponding radio frequency equipment is installed in the hoistway and elevator car; the system reads the signal strength of all radio frequency tags in real time and transmits it back to the system; the system determines the position of the elevator car through an algorithm based on the data transmitted by the radio frequency reader; and the system automatically controls the operation of the elevator according to the position of the elevator car.

[0014] Paragraphs 34-35 of the manual state: "It can be determined that the elevator car is between floors k and l, and closer to floor k." Once the elevator leveling switch is activated, the system can determine that the elevator is already at the corresponding leveling position on floor k. Utilizing RFID technology, based on the propagation laws of wireless signals (i.e., the stronger the signal strength measured by the receiver, the closer the sender is to the receiver; the weaker the received signal strength, the farther the sender is. Therefore, by measuring the received signal strength, the distance from the mobile station to the base station can be inferred), combined with the wireless signal "distance-loss" model, the elevator is located by reading the signal strength of the radio frequency tag in real time and using an effective algorithm. This method eliminates the need for self-learning, assists in the effective operation of the elevator, does not rely on previous data, and is easily expandable.

[0015] D2: CN206336872U discloses an elevator Internet of Things monitoring and management device involving the field of elevator equipment management. It is composed of a car, sensor acquisition, image acquisition, and a maintenance company monitoring terminal. The car is equipped with a sensor acquisition device, an image acquisition device, and an RFID identification acquisition device. The sensor acquisition, image acquisition, and RFID identification acquisition devices are all connected to the elevator signal acquisition processor. The elevator signal acquisition processor is connected to cloud computing. Cloud computing, the internet, and the mobile internet are interconnected. The maintenance company monitoring terminal is connected to the internet. The utility model is an elevator Internet of Things monitoring and management device that realizes safety monitoring functions such as elevator operation status recording, fault identification, real-time alarm, and trapped person rescue. It performs online real-time analysis of the elevator operation status and faults, transmits the elevator operation and fault data to the server platform via a wireless network, and at the same time collects elevator operation data through the elevator operation safety monitoring system.

[0016] However, the solution does not explain the role of the RFID identification and collection device.

[0017] It can be seen that the existing technology proposes a combination of RFID floor identification and leveling switch for leveling positioning to achieve floor and leveling detection.

[0018] The problem with existing technologies is that most leveling switches and RFID identification and collection devices are separate. This separate structure has the following drawbacks: the locations in the elevator where the leveling switch and floor identification device can be conveniently installed are very limited. The most suitable location is where the elevator's original leveling switch is installed. If the leveling sensor and floor identification are not integrated, and instead a leveling switch and a floor identification device are installed separately in the original leveling switch location, the installation space will be further limited and the installation will be more complicated. It will also lead to higher hardware costs and higher installation and deployment costs. The elevator after-installation IoT market is a cost-sensitive market. The high hardware and installation and deployment costs will make this approach impossible to implement, defeating the purpose of the product ultimately serving the market.

[0019] However, if we combine the RFID identification and collection device with the leveling switch, we will find the following problems after integrating the RFID identification and collection device into the leveling switch:

[0020] 1: First, integrating the leveling switch and RFID near-field sensing technology into the size of a traditional leveling switch presents certain difficulties in structural and circuit design.

[0021] 2: Secondly, the RFID card that comes with it needs to be attached to a flat shield made of metal (usually iron) in actual application scenarios. Metal will cause very serious attenuation of the electromagnetic field of RFID work, so magnetic conductive material must be attached between the RFID card and the metal to reduce the impact of metal on RFID work.

[0022] 3. Even if magnetic conductive material is applied, the working distance of RFID near field is very limited. In addition, the metal shield will inevitably absorb and attenuate the card. If the working performance of the RFID reader and the RFID card is not optimized, stable card reading cannot be guaranteed.

[0023] Therefore, the core problem to be solved in this case is: how to ensure sensitive information reading between the RFID reader and the RFID card after integrating the RFID reader into the leveling switch. Summary of the Invention

[0024] The purpose of the present invention is to provide a floor and level identification system. During our research, we found that if we want to achieve sensitive information reading in a very limited area, we need to significantly optimize the coil design of the card reader and the selection and design of the magnetic material layer to improve the sensitivity of information transmission.

[0025] After repeated testing, we determined that the impedance of the coil in the RFID reader is 50-70 ohms; the thickness of the magnetic material layer is 0.18-0.22 mm; the relative magnetic permeability of the magnetic material in the magnetic material layer is 45-55; and the resonant frequency of the RFID card is 13.4 MHz to 14.2 MHz, which can achieve sensitive information transmission under the premise of a limited area.

[0026] At the same time, the present invention also provides a floor and level identification method.

[0027] To achieve the above objectives, the present invention provides the following technical solutions: a floor and leveling identification system, comprising a leveling switch and a plurality of vertically arranged partitions, the partitions being arranged sequentially from bottom to top in an elevator shaft; the leveling switch being U-shaped and having two arms; the partitions passing through the recess of the leveling switch when the leveling switch is raised or lowered;

[0028] Select at least one partition as a reference partition;

[0029] An RFID card is attached to the reference partition, and a magnetic conductive material layer is coated between the RFID card and the partition; an RFID card reader is provided in one arm of the leveling switch;

[0030] The impedance of the coil in the RFID card reader is 50-70 ohms;

[0031] The thickness of the magnetic conductive material layer is 0.18-0.22 mm; the relative magnetic permeability of the magnetic conductive material in the magnetic conductive material layer is 45-55; and the resonant frequency of the RFID card is 13.4 MHz-14.2 MHz.

[0032] In the above-mentioned floor and level identification system, the size of the coil in the RFID card reader is 44mm*23mm.

[0033] In the above-mentioned floor and leveling identification system, the inner distance between the two arms of the leveling switch is 30 mm; the outer distance between the two arms of the leveling switch is 65 mm; and the RFID reader is located near the inner side of one of the arms.

[0034] In the above-mentioned floor and leveling identification system, the two arms of the leveling switch are respectively provided with a photoelectric transmitting module, a photoelectric receiving module and a main control module; the main control module is electrically connected to the photoelectric transmitting module and the photoelectric receiving module.

[0035] In the above-mentioned floor and level identification system, the photoelectric transmitting module includes a first transmitting end and a second transmitting end arranged up and down; the photoelectric receiving module includes a first receiving end and a second receiving end; the first transmitting end and the first receiving end are facing each other; the second transmitting end and the second receiving end are facing each other.

[0036] In the above-mentioned floor and level identification system, the first transmitting end and the second transmitting end alternately transmit optical pulse signals; the duty cycle of the optical pulse signals is less than 10%; preferably less than 5%; preferably less than 3%; preferably less than 2%.

[0037] In the above-mentioned floor and level identification system, the partition is a metal plate.

[0038] In the above-mentioned floor and level identification system, all partitions are reference partitions.

[0039] At the same time, the present invention also discloses a method for identifying floors and levels, which uses any of the above-mentioned systems to identify floors and levels;

[0040] The RFID card contains floor information; the RFID card is read by an RFID card reader to obtain the floor information;

[0041] The leveling switch is used to determine whether the elevator is at the leveling floor.

[0042] More specifically, the method is as follows:

[0043] The RFID card reader in the leveling switch reads the RFID card to obtain the floor information where the reference partition is located;

[0044] The leveling switch is used to determine whether the elevator is at the level and whether the car is in the upward or downward state, and then the accumulated number of floors ascended or descended by the leveling switch is obtained to obtain the floor where the leveling switch is located.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] Through the coil design of the card reader, the selection and design optimization of the magnetic conductive material layer, after testing, the reliability of its data transmission is 100%, which fully meets the test requirements of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic structural diagram of Example 1;

[0048] Figure 2 This is a schematic diagram of the coordination between the leveling switch and the baffle in Example 1;

[0049] Figure 3 This is a three-dimensional diagram of the leveling switch of Example 1;

[0050] Figure 4 This is a top view of the leveling switch of Example 1;

[0051] Figure 5Graph showing the relationship between coating thickness, magnetic permeability, and attenuation of the magnetic conductive coating of Example 1;

[0052] Figure 6 This is a graph showing the relationship between the coating thickness, magnetic permeability, and attenuation of the magnetic conductive coating of Example 1 after RFID is installed;

[0053] Figure 7 is a diagram showing the relationship between the resonant frequency and attenuation of Example 1 of the present invention;

[0054] Figure 8 A structural diagram of the coil and additional circuit of the RFID card reader of the present invention;

[0055] Figure 9 It is a plan view of the coil of the RFID reader of the present invention. DETAILED DESCRIPTION

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] Example 1

[0058] refer to Figure 1-4 A floor and leveling identification system includes a leveling switch 1 and a plurality of vertically arranged partitions 2, which are arranged in order from bottom to top in an elevator shaft 3; the leveling switch is U-shaped and has two arms 4; when the leveling switch is raised or lowered, the partitions pass through the recess 5 of the leveling switch;

[0059] As an optional form of the present invention, one of the partitions is selected as a reference partition;

[0060] The reference partition is attached with an RFID card 6, and a magnetic conductive material layer is coated between the RFID card and the partition; an RFID card reader 7 is provided in one arm of the leveling switch; the planar structure of the RFID card reader 7 is as follows Figure 9 As shown;

[0061] The impedance of the coil in the RFID card reader is 50-70 ohms;

[0062] The thickness of the magnetic conductive material layer is 0.2 mm; the relative magnetic permeability of the magnetic conductive material in the magnetic conductive material layer is 50; and the resonant frequency of the RFID card is 13.87 MHz.

[0063] The selected reference partition should be the partition of the floor that the elevator car often goes to, such as the first floor; of course, other floors are not excluded;

[0064] When the elevator reaches the first floor, it can be detected by the RFID card reader 7 or the car is on the first floor at this time; the leveling switch has the function of judging the level and judging the up and down movement of the car (the basic function of the commercially available two-way leveling switch);

[0065] The leveling switch can be used to determine whether the elevator is at a level floor and how many levels it has passed when going up or down. Combined with the reference floor determined when it was on the first floor, the current floor of the elevator can be determined.

[0066] As another optional form of the present invention, all the partitions can be reference partitions, or the partitions can be alternately set to have one be a common partition and the other be a reference partition; or any other optional form;

[0067] If this form is selected, there is no need to calibrate the reference layer on the first floor every time.

[0068] Of course, these are not the core technologies of the present invention. The core of the present invention lies in how to achieve accurate and sensitive transmission of radio frequency data in a limited space.

[0069] When judging the leveling position and floor, when the leveling switch moves to the partition position, the floor information in the RFID card is read by the RFID card reader, and the leveling switch is used to determine whether it is in the leveling position.

[0070] More specifically, the impedance of the coil of the present invention includes the impedance of the coil itself and the impedance of the circuit connected to the coil; the circuit connected to the coil of the present invention is as follows: Figure 8 As shown;

[0071] U1 is an RFID reader chip, which transmits differential 13.56MHz signals and energy through TX1 and TX2;

[0072] Inductors L1, L2, and capacitors C3, C4, C9, and C10 form differential filtering and impedance conversion. Capacitors C1, C6, C5, C7, C11, C14, C12, and C13 form a matching circuit with the PCB coil. Resistors R2, R3, R4, and R5 are used to adjust the quality factor.

[0073] The parameters of the above components, together with the PCB coil, determine the final impedance value and consistency. The following is a table of the parameters of the above components, as shown in Table 1.

[0074] Table 1 Component parameter table

[0075] Material Code Material specifications Dosage Position No. D002344 Chip ceramic capacitor, 18pF, 1%, COG, 50V 2 C1, C14 D002341 Chip ceramic capacitor, 100pF, 1%, COG, 50V 2 C3, C9 D002342 Chip ceramic capacitor, 150pF, 1%, COG, 50V 4 CA, C5, C10, C12 D002345 Chip ceramic capacitor, 22pF, 1%, COG, 50V 2 C7, C13 D002343 Chip ceramic capacitor, 15pF, 1%, COG, 50V 2 C6, C11 D003192 Chip wound inductor, 470nH, ±2%, Ir=250mA 2 L1, L2 D001374 Thick Film Resistor, 1.5R, 1%, 1 / 16W, 0402 Resistor 4 R2, R3, R4, R5

[0076] The final impedance is measured at the TP1 and TP5 test points. The measured value is the impedance value of the PCB coil and the related matching filter circuit.

[0077] The received signal is input to the U1 RX pin through a signal attenuation and bias network consisting of resistors R1, R8 and capacitors C16, R6.

[0078] Clock crystal Y1 provides 27.12MHz oscillation clock for U1;

[0079] U1 communicates with the main MCU through the SPI interface (NFC_MISO, NFC_MOSI, NFC_SCLK, NFC_NSS).

[0080] It should be noted that the flat switch is not large in size, so we need to arrange the RFID reader within a limited area. Based on this premise, to achieve sensitive RFID data transmission, two factors are important: the optimization of coil impedance and magnetic coating.

[0081] By adjusting the capacitance / inductance / resistance of the matching circuit, the impedance of the coil (including the matching circuit) can be within the range of 50-70 ohms. On the one hand, better coil performance can be achieved, and on the other hand, overcurrent protection of the card reader chip can be avoided when the coil is severely detuned. Figure 7 The figure shows the measured performance of the coil (including the matching circuit) after optimized matching. It should be noted that this performance indicator is for the coil in free space. The matching process takes into account the effects of the RFID card and metal plate on the coil. When the metal plate and RFID card are in the coil area, the imaginary part of their impedance component is reduced, achieving more ideal energy transmission.

[0082] At the same time, performance consistency must be taken into consideration during mass production. In the matching circuit, we use 2% high-precision inductors and 1% high-precision capacitors to ensure good RF consistency of the product. The following is the network characteristics of the coil (including matching circuit) tested for 10 PCS samples, showing good data consistency.

[0083] The consistency test results can be seen in Table 2. In Table 2, 10 samples were used for testing.

[0084] Table 2 Test results

[0085] Sample No. Real part R Imaginary part J Impedance Z #01 60.2 -15.5 62.2 #02 60.5 -14.7 62.3 #03 61.9 -12.0 63.1 #04 61.7 -12.6 63.0 #05 58.4 -17.0 60.8 #06 60.8 -15.5 62.7 #07 59.2 -17.3 61.7 #08 59.4 -17.1 61.8 #09 59.8 -16.0 61.9 #10 60.1 -16.2 62.2

[0086] To further improve the sensitivity of data transmission, after optimization, the size of the coil in the RFID card reader is 44mm*23mm, the inner spacing of the two arms of the leveling switch is 30mm, and the outer spacing of the two arms of the leveling switch is 65mm; the RFID card reader is located near the inner side of one of the arms.

[0087] For the optimization of magnetic conductive coating, the specific optimization measures are as follows:

[0088] The magnetic conductive coating is selected as a coating with a relative magnetic permeability of 50 and a thickness of 0.2 mm; the magnetic conductive coating is provided by (Shenzhen Weijierxun Technology Co., Ltd.);

[0089] In the process of screening magnetic conductive coatings, it is necessary to explore the mutual influence relationship between metal, RFID card and magnetic conductive material. After analysis, the relationship between metal and magnetic conductive material can be seen. Figure 5 , Figure 5 In the paper, the relationship between magnetic permeability and resonant frequency was analyzed when the thickness of the magnetic conductive coating varied from 0 to 2.5 mm. The results showed that when the magnetic conductive material is attached to the RFID card, the resonant frequency of the RFID card will decrease. The thicker the magnetic conductive material and the higher the magnetic permeability, the more the resonant frequency will decrease.

[0090] refer to Figure 6 When an RFID card with magnetic conductive material is attached to metal, the resonant frequency of the RFID card will rise again due to the reverse magnetic flux generated by the metal eddy current. The thinner the magnetic conductive material and the lower the magnetic permeability, the more the resonant frequency rises, but at the same time, the attenuation is also greater.

[0091] based on Figure 5 and Figure 6 Based on the analysis, we selected a coating thickness of 0.2mm and a magnetic material with a relative magnetic permeability of 50. The more specific reasons are:

[0092] A. When the relative permeability of the magnetic material is too low, a thicker material must be used to achieve a better magnetic conductivity. A thicker material not only increases the hardness, making it less likely to adhere securely, but also increases the overall thickness, hindering the structural margin.

[0093] B. When the relative magnetic permeability of the magnetic material is too high, firstly, the cost of high permeability materials is high, which is not conducive to cost control; in addition, materials with higher relative magnetic permeability are often hard materials and cannot be used in adhesive applications.

[0094] C. Using a magnetic material with a relative magnetic permeability of 50, which has both a high relative magnetic permeability and a 0.2mm flexible material that is more suitable for attachment and has a relatively low cost, is a relatively ideal choice.

[0095] By using a magnetic material with reasonable thickness and magnetic permeability, and matching it with an RFID card, and then sticking it to a metal surface, if its resonant frequency is around 13.56MHz, it is theoretically an ideal anti-metal RFID card.

[0096] The products prepared according to the above indicators were tested, and the test results are shown in Table 3 and Figure 7 ;

[0097] Table 3 Test results

[0098]

[0099] More specifically, a photoelectric transmitting module, a photoelectric receiving module and a main control module are respectively provided on the two arms of the leveling switch; the main control module 8 is electrically connected to the photoelectric transmitting module and the photoelectric receiving module, and the photoelectric transmitting module includes a first transmitting end 9 and a second transmitting end 10 arranged vertically; the photoelectric receiving module includes a first receiving end 11 and a second receiving end 12; the first transmitting end and the first receiving end are opposite to each other; the second transmitting end and the second receiving end are opposite to each other, and the first transmitting end and the second transmitting end alternately transmit optical pulse signals; the duty cycle of the optical pulse signal is less than 10%; preferably less than 5%; preferably less than 3%; preferably less than 2%.

[0100] The improved leveling switch of the present invention can accurately realize the judgment of elevator speed and direction in addition to leveling judgment;

[0101] The present invention arranges two first emitting ends and a second emitting end on the same side of the arm. The two emitting ends emit light in a pulsed form. The emission cycle interval from the first emitting end to the second emitting end is 60-70 μs, and the interval between two emissions of the first emitting end is 120-130 μs; the timing period is 60-70 μs;

[0102] The leveling switch of the present invention has three functions:

[0103] Function 1: Leveling identification: If neither the first receiving end nor the second receiving end receives an optical pulse, it means that the partition is completely blocked; the main control module can be notified that it is at the leveling position.

[0104] Function 2: Movement direction identification, according to the order in which the first receiving end and the second receiving end are blocked, the direction of movement of the car can be determined;

[0105] Function 3: Identification of movement speed. The car's travel speed can be determined based on the time interval between the first receiving end and the second receiving end being blocked, and the distance difference between the first receiving end and the second receiving end.

[0106] In the present invention, the design of alternating transmission from the first transmitting end to the second transmitting end is mainly specially set to improve the accuracy when judging the alternating movement direction and speed. If the two do not transmit alternately, it is possible that the optical pulse signal emitted by the first transmitting end is received by both the first receiving end and the second receiving end, resulting in the first receiving end and the second receiving end being unable to accurately judge whether the first transmitting end or the second transmitting end is blocked; when the two transmit alternately, if the first transmitting end is blocked and the second transmitting end is not blocked, even if the first receiving end receives the optical signal, the main control module will also know that the optical signal received by the first receiving end should be ignored.

[0107] In many application scenarios, for example, when the first transmitting end is located above the second transmitting end and the elevator runs from bottom to top, when the second transmitting end is shielded and the first transmitting end is not shielded, the second transmitting end transmits a light pulse. The second receiving end generally does not receive the light pulse, but the first receiving end has a certain probability of receiving it. In this case, the main control module can determine that the light pulse was not emitted by the first transmitting end based on the time when the first receiving end receives the light pulse, and thus judge that the reception is invalid.

[0108] Therefore, when the first transmitting end transmits an optical signal, as long as the first receiving end receives the optical signal, regardless of whether the second receiving end receives the optical signal, we consider that the first transmitting end is shielded.

[0109] Through the above design, the accuracy and precision of judging the car's running speed and direction can be significantly improved.

[0110] In this embodiment, the partition is a metal plate. In actual applications, the metal plate is mostly made of iron. However, the RFID card and magnetic conductive material mentioned in the present invention can be applied to all conductive metal materials, including but not limited to iron, aluminum, copper or other metal materials.

Claims

1. A floor and level recognition system, characterized in that: The elevator comprises a leveling switch and a plurality of vertically arranged partitions, which are arranged in sequence from bottom to top in the elevator shaft; the leveling switch is U-shaped and has two arms; when the leveling switch is raised or lowered, the partitions pass through the recessed portion of the leveling switch; the partitions are metal plates; Select at least one partition as a reference partition; An RFID card is attached to the reference partition, and a magnetic conductive material layer is coated between the RFID card and the partition; an RFID card reader is provided in one arm of the leveling switch; The impedance of the coil in the RFID reader is 50-70 ohms; The thickness of the magnetic conductive material layer is 0.18-0.22 mm; the relative magnetic permeability of the magnetic conductive material in the magnetic conductive material layer is 45-55; the resonant frequency of the RFID card is 13.4 MHz-14.2 MHz; The coil inside the RFID reader has a size of 44mm*23mm. The inner spacing between the two arms of the leveling switch is 30mm; the outer spacing between the two arms of the leveling switch is 65mm. The RFID reader is located near the inner side of one of the arms. The two arms of the leveling switch are respectively provided with a photoelectric transmitting module, a photoelectric receiving module and a main control module; the main control module is electrically connected to the photoelectric transmitting module and the photoelectric receiving module; The photoelectric transmitting module includes a first transmitting end and a second transmitting end arranged vertically; the photoelectric receiving module includes a first receiving end and a second receiving end; the first transmitting end and the first receiving end are directly opposite to each other; the second transmitting end and the second receiving end are directly opposite to each other; When neither the first receiving end nor the second receiving end receives the light pulse, it is determined that the partition is completely blocked and is at a level floor. The direction of the car can be determined according to the order in which the first receiving end and the second receiving end are blocked; The travel speed of the car can be determined based on the time interval between when the first receiving end and the second receiving end are blocked, and based on the distance difference between the first receiving end and the second receiving end.

2. The floor and level identification system according to claim 1, characterized in that: The first transmitting end and the second transmitting end alternately transmit optical pulse signals; and a duty cycle of the optical pulse signals is less than 10%.

3. The floor and level identification system according to claim 2, characterized in that: The duty cycle of the optical pulse signal is less than 5%.

4. The floor and level identification system according to claim 3, characterized in that: The duty cycle of the optical pulse signal is less than 3%.

5. The floor and level identification system according to claim 4, characterized in that: The duty cycle of the optical pulse signal is less than 2%.

6. The floor and level identification system according to any one of claims 1 to 5, characterized in that: All partitions are reference partitions.

7. A method for identifying floors and levels, characterized in that: Using the system as claimed in claim 1 to identify floors and levels; The method is specifically as follows: The RFID card reader in the leveling switch reads the RFID card to obtain the floor information where the reference partition is located; The leveling switch is used to determine whether the elevator is at the level and whether the car is in the upward or downward state, and then the accumulated number of floors ascended or descended by the leveling switch is obtained to obtain the floor where the leveling switch is located.

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