An elevator energy consumption analyzer

Abstract

The present invention relates to an elevator energy consumption analyzer. The elevator energy consumption analyzer comprises: a box, a coding unit, a sensor unit and a processing unit; the coding unit and the sensor unit are both connected to the processing unit; the coding unit, the sensor unit and the processing unit are all placed in the box; the coding unit is used to generate a circle code according to the operation of the elevator; the sensor unit is used to obtain the current and voltage when the elevator is running; the processing unit is used to determine the elevator running speed according to the circle code, to determine the running position according to the running speed, and to determine the running energy consumption according to the current and voltage. The elevator energy consumption analyzer provided by the present invention integrates the sensor unit, the coding unit and the processing unit in the box, so that the entire elevator energy consumption analyzer has the characteristics of being easy to carry and simple in structure. In addition, after the relevant parameters in the elevator operation process are measured by the sensor unit and the coding unit, the specific energy consumption of the elevator operation can be accurately obtained through processing by the processing unit.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to an elevator energy consumption analyzer. Background Art

[0002] As a vertical transportation tool in buildings, elevators are widely used in high-rise buildings such as residences, hotels, shopping malls, and office buildings. They are an indispensable means of transportation in modern urban life. According to statistics, the number of elevators in China reached 7.8655 million by the end of 2020. With the development of the real estate market, the increase in urban public construction, the peak of elevator renewal, and the addition of elevators to old buildings, the Chinese elevator market will continue to maintain rapid growth. As a result, the demand for electricity from elevators will also increase rapidly.

[0003] In China's total annual energy consumption, building energy consumption accounts for about 30% of the total social energy consumption, and has become the largest energy consumption in society. Reducing building energy consumption has become the primary task of energy conservation and emission reduction and building a low-carbon economy. The energy consumption of equipment such as air conditioning, lighting, office equipment, and elevators is the main component of the entire building energy consumption. As far as elevators are concerned, the energy consumed during their use generally accounts for 5-15% of the total energy consumption of the entire building, which accounts for a considerable proportion of the entire social energy consumption.

[0004] Therefore, the air conditioners, lamps, building materials, etc. in the current buildings in the world all have energy-saving standards. As an important equipment in modern buildings, traction elevators still lack relevant energy-saving standards, both for the elevator equipment itself and for elevators installed in different use environments. The reason is that the research on elevator energy-saving technology and elevator energy efficiency evaluation is still in its infancy, lacking elevator energy consumption evaluation methods, and elevator energy consumption test equipment is indispensable for elevator energy consumption measurement and evaluation.

[0005] However, elevators are not simple electromechanical products produced on a large scale, but engineering systems tailored to different buildings. The use environment and working conditions of elevators are not as simple as those of boilers and pressure vessels. The energy consumption analysis needs to be combined with the characteristics of the elevator itself, such as the drive mode, rated load, rated speed, number of configurations, and dispatching strategy of the control system. It is also closely related to the number of floors in the building and the number of people using the elevator, especially the required service quality.

[0006] There are many methods for measuring elevator energy consumption that have been proposed. One of them is to measure only the electric energy consumed by the elevator in one cycle. The specific measurement methods are: either let the elevator run for one cycle without load and record the electric energy consumed. The method is too simple and has a large measurement error; or simulate the working condition of the elevator, and move 25%, 50%, 75%, and 100% of the rated load into the elevator, which is time-consuming, labor-intensive and costly. Although the other type considers both the mechanical energy and electric energy of the elevator, they all record and measure the electric energy consumed by the elevator in one cycle, and then estimate the potential energy based on the floor height and the number of floors. The mechanical energy obtained by this method has a certain error with the actual value, especially when the load is large, the error will be greater. In addition, the actual working condition of the elevator is not considered, so the measurement result is also inaccurate.

[0007] Moreover, in the process of measuring the energy consumption of elevators, data acquisition and measurement are performed by installing relevant components of the measuring equipment separately, or directly acquiring data from the equipment in the elevator central control, and no systematic measuring equipment with easy portability and simple structure is proposed for use. Summary of the invention

[0008] The purpose of the present invention is to provide an elevator energy consumption analyzer which is easy to carry and has a simple structure.

[0009] To achieve the above object, the present invention provides the following solutions:

[0010] An elevator energy consumption analyzer comprises: a box, an encoding unit, a sensor unit and a processing unit;

[0011] The encoding unit and the sensing unit are both connected to the processing unit; the encoding unit, the sensing unit and the processing unit are all placed in the box;

[0012] The encoding unit is used to generate a circle code according to the operation of the elevator; the sensing unit is used to obtain the current and voltage when the elevator is running; the processing unit is used to determine the elevator running speed according to the circle code, to determine the running position according to the running speed, and to determine the running energy consumption according to the current and voltage.

[0013] Preferably, the encoding unit comprises: an encoder and an adsorption wheel group;

[0014] The encoder is connected to the adsorption wheel group; the encoder is used to record the number of rotations of the adsorption wheel group.

[0015] Preferably, the adsorption wheel group comprises: a driving wheel and a driven wheel;

[0016] The driving wheel and the driven wheel are connected through a transmission belt; the driving wheel is in contact with and connected to a steel rope for elevator operation; and the driving wheel is connected to the encoder.

[0017] Preferably, the encoding unit further comprises: a magnet;

[0018] The magnet is mechanically connected to the adsorption wheel set; the magnet is used to adsorb the encoding unit at a set position of the elevator.

[0019] Preferably, the sensing unit comprises: a current sensor, a voltage sensor and a three-phase current clamp;

[0020] The three-phase current clamp is connected to the current sensor or the voltage sensor; the current sensor and the voltage sensor are both connected to the processing unit;

[0021] During the detection process, the three-phase current clamp is hung on the set connection point of the elevator.

[0022] Preferably, the processing unit is an APM processing chip.

[0023] Preferably, the box body comprises: a first accommodating chamber, a second accommodating chamber, a third accommodating chamber, an interface area and a battery;

[0024] The first accommodating cavity is used for placing the sensor unit; the second accommodating cavity is used for placing the encoding unit; the battery and the processing unit are both arranged in the third accommodating cavity, and the processing unit is located below the battery.

[0025] Preferably, the box body further comprises: a first cover plate, a second cover plate and an interface area;

[0026] The first cover plate is arranged on the first accommodating cavity and the second accommodating cavity; the second cover plate is arranged on the third accommodating cavity; the interface area is provided with a plug hole and a switch key; the plug hole is used to plug in the connecting wires of the encoding unit and the sensing unit.

[0027] Preferably, it also includes: a wireless sensing unit;

[0028] The wireless sensor unit is connected to the processing unit; the wireless sensor unit is used to transmit the signal generated by the processing unit to a remote device.

[0029] Preferably, the remote device is a laptop, a tablet computer or a smart phone.

[0030] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0031] The elevator energy consumption analyzer provided by the present invention integrates the sensor unit, the encoding unit and the processing unit in a box, so that the entire elevator energy consumption analyzer has the characteristics of being easy to carry and having a simple structure. In addition, after the relevant parameters in the elevator operation process are measured by the sensor unit and the encoding unit, the specific energy consumption of the elevator operation can be accurately obtained through processing by the processing unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A first schematic diagram of a box provided by an embodiment of the present invention;

[0034] Figure 2 A structural block diagram of the elevator energy consumption analyzer provided by the present invention;

[0035] Figure 3 A system block diagram of an elevator energy consumption analyzer provided by an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of the structure of a coding unit provided in an embodiment of the present invention.

[0037] Figure 5 A second schematic diagram of a box provided by an embodiment of the present invention;

[0038] Figure 6 A third schematic diagram of a box provided by an embodiment of the present invention;

[0039] Figure 7 A schematic diagram of a connection point between an elevator energy consumption analyzer and an elevator provided in an embodiment of the present invention;

[0040] Figure 8 A layout diagram of an elevator energy consumption analyzer provided in an embodiment of the present invention;

[0041] Fig. 9 A diagram of the human-machine operation interface of the elevator energy consumption analyzer provided in an embodiment of the present invention during the elevator energy consumption measurement process.

[0042] Description of reference numerals:

[0043] 1-first accommodating cavity, 2-second accommodating cavity, 3-second cover plate, 4-interface area, 5-first cover plate, 6-battery, 7-processing unit, 8-encoder, 9-driving wheel, 10-driven wheel, 11-magnet. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0045] The purpose of the present invention is to provide an elevator energy consumption analyzer which is easy to carry and has a simple structure.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] like Figure 1-3 As shown, the elevator energy consumption analyzer provided by the present invention includes: a box body, an encoding unit, a sensor unit and a processing unit 7.

[0048] The encoding unit and the sensing unit are both connected to the processing unit 7. The encoding unit, the sensing unit and the processing unit 7 are all placed in a box.

[0049] The encoding unit is used to generate a circle code according to the operation of the elevator. The sensing unit is used to obtain the current and voltage when the elevator is running. The processing unit 7 is used to determine the elevator running speed according to the circle code, to determine the running position according to the running speed, and to determine the running energy consumption according to the current and voltage.

[0050] In order to further improve the accuracy of detection, the elevator energy consumption analyzer provided by the present invention also includes: a collection unit and an optical coupler signal isolation unit.

[0051] The acquisition unit includes a signal conditioning unit and a data acquisition unit. The signal conditioning unit is connected to the encoding unit and the sensing unit respectively. The data acquisition unit is connected to the optical coupler signal isolation unit. The optical coupler signal isolation unit is connected to the processing unit 7.

[0052] The sensing signal and the coding signal are collected by the electrical parameters, conditioned by the signal conditioning unit, and isolated by the optical coupling signal isolation unit before being sent to the processing unit 7, which realizes the calculation of the measurement data and the intelligent judgment of the energy efficiency level. Among them, since the processing process of the processing unit 7 is a prior art, only a brief introduction is made in the present invention, that is, the processing principle of the processing unit 7 is:

[0053] Elevators are usually powered by three-phase AC power supply. Elevator energy consumption measurement usually refers to the measurement of the total active power of the elevator. The total active power is the integral of the total active power and can be expressed as E = ∫P(t)dt.

[0054] The total active power P(t) is the DC component of the instantaneous power p(t). The instantaneous power is the rate at which electrical energy flows from the power source to the load. Assume that the voltage output by the AC power supply is u(t) and the current is i(t), and both contain harmonics, then

[0055]

[0056] Among them, U k and I k are the voltage and current effective values ​​of each harmonic respectively. and γ k are the phase delays of the harmonics, and ω is the vector angle.

[0057] The instantaneous power is:

[0058]

[0059] Among them, the total active power is equal to the DC component of the instantaneous power p(t), that is,

[0060]

[0061] The total active energy adopts the trapezoidal integration method and can be expressed as (n≥1):

[0062]

[0063] Where n is the number of discrete time samples and T is the sampling period.

[0064] During the whole process of energy consumption detection, it is necessary to measure based on time, so a timing unit can be set in the elevator energy consumption analyzer provided in the present invention, and the operator can also rely on the timing device he carries with him to determine the time.

[0065] Furthermore, in order to improve the accuracy of measurement and reduce the complexity of operation, the encoding unit used in the present invention preferably includes: an encoder 8 and an adsorption wheel set.

[0066] The encoder 8 is connected to the adsorption wheel set. The encoder 8 is used to record the number of rotations of the adsorption wheel set.

[0067] The adsorption wheel group includes: a driving wheel 9 and a driven wheel 10.

[0068] like Figure 4 As shown, the driving wheel 9 and the driven wheel 10 are connected by a transmission belt. The driving wheel 9 is in contact with the steel rope of the elevator. The driving wheel 9 is connected to the encoder 8. In order to avoid wear on the elevator steel rope and increase the friction between the steel rope and the driving wheel 9, the driving wheel 9 in the present invention is preferably a rubber wheel.

[0069] In order to facilitate the adsorption wheel group to be adsorbed on the elevator so that the driving wheel 9 can directly lean against the steel rope of the elevator, the encoding unit in the present invention preferably also includes: a magnet 11.

[0070] like Figure 4 As shown, the magnet 11 is mechanically connected to the adsorption wheel set. The magnet 11 is used to adsorb the encoding unit at the set position of the elevator.

[0071] Based on the above specific structure of the encoding unit provided by the present invention, it has higher accuracy for multi-dimensional analysis of elevator energy consumption, and is more durable than traditional grating encoders, and conforms to the actual operating conditions of elevators. The speed of the elevator can be directly obtained through the encoder, so that the acceleration of the elevator can be obtained through differentiation, and the running displacement of the elevator can be obtained through integration. The encoder has 4096 lines, 4 times the frequency, and a sampling frequency of 1000Hz, which makes the acceleration obtained by speed differentiation and the displacement obtained by integration more accurate. The encoder can automatically determine the start and stop of the elevator, which is convenient for truly detecting the start and stop time of the elevator and the energy consumption between starts and stops.

[0072] Furthermore, electric energy testing is a basic function of an elevator energy consumption analyzer. In order to improve the accuracy of electric energy testing, the sensing unit provided in the present invention preferably includes: a current sensor, a voltage sensor and a three-phase current clamp.

[0073] The three-phase current clamp is connected to a current sensor or a voltage sensor. Both the current sensor and the voltage sensor are connected to a processing unit 7.

[0074] During the test, the three-phase current clamp is hung on the set connection point of the elevator. The setting position of the connection point is as follows: Figure 7 As shown. In the present invention, the three-phase current clamp is preferably three current clamps, which are respectively clamped on the three-phase current lines of the elevator to improve the operation safety and data acquisition accuracy.

[0075] The processing unit 7 used preferably includes a 32-bit processor, an electrical parameter acquisition chip and a digital signal processor, wherein the 32-bit processor has a floating point number and a DSP operation unit, has strong processing capabilities, and the three-phase electrical parameter acquisition uses an imported electrical parameter acquisition chip. The processing unit 7 can be built-in with a high-precision three-phase electric energy metering integrated chip, which integrates a second-order Σ-Δ analog-to-digital converter, a digital integration and an ADC reference source circuit, etc., and uses a specially designed digital signal processor to calculate total active power, reactive power and apparent power, etc., which is suitable for the measurement of active, reactive and apparent electric energy under various three-phase configurations. In addition, the processing unit 7 can also provide system calibration functions, including effective value offset correction, phase calibration and gain calibration, etc.

[0076] When the processing unit 7 is collecting electrical parameters, its main parameters are shown in Table 1 below.

[0077] Table 1

[0078]

[0079]

[0080] Furthermore, the processing unit 7 used is an STM32F401RC ARM microcontroller, which is based on a Cortex-M4 32-bit core with an operating frequency of 84MHz and a built-in floating-point unit that supports all DSP instruction sets, ARM single-precision data processing instructions and data types, with a processing speed of 105DMIPS. Adaptive real-time accelerator processing technology is applied to achieve zero waiting when executing from the Flash memory. The 90nm manufacturing process is used, which reduces power consumption and improves integration, and can be implemented in 9mm 2 The package integrates 256k bytes of Flash, 64k bytes of SRAM, 3 USARTs with a speed of up to 10.5Mb / s, 4 SPIs with a speed of up to 42Mb / s, and 3 I 2 C, 1 SDIO, 12-bit ADC with a speed of up to 2.4MSPS, etc. The dynamic power adjustment function of the core voltage can be adjusted in real time according to the required execution speed, so that it can achieve a current consumption as low as 128μA / MHz when in operation mode and executing from Flash memory, and a power consumption as low as 9μA in shutdown mode. Through the effective integration of multiple technologies such as nano-manufacturing process, adaptive real-time accelerator and dynamic voltage adjustment, the integration is improved while achieving the best balance between dynamic power consumption and execution performance.

[0081] Based on this, the elevator energy consumption analyzer provided by the present invention can measure the elevator physical quantities as shown in Table 2 below.

[0082] Table 2 Physical quantities measured

[0083] Serial number Physical quantity Test site Accuracy Remark 1 speed Wire Rope 1mm / 10ms Direct measurement 2 power Power input terminal 0.001kW Direct measurement 3 energy Power input terminal 0.00001kW·h Power integration 4 Displacement Wire Rope Speed ​​integral 5 Acceleration Wire Rope Speed ​​differential

[0084] Further, if Figure 1 , Figure 5 and Figure 6 As shown, the box provided by the present invention preferably includes: a first accommodating chamber 1 , a second accommodating chamber 2 , a third accommodating chamber, a battery 6 , a first cover plate 5 , a second cover plate 3 and an interface area 4 .

[0085] The first accommodating cavity 1 is used to place the sensor unit. The second accommodating cavity 2 is used to place the encoding unit. The battery 6 and the processing unit 7 are both arranged in the third accommodating cavity, and the processing unit 7 is located below the battery 6.

[0086] The first cover plate 5 is covered on the first accommodating cavity 1 and the second accommodating cavity 2. The second cover plate 3 is covered on the third accommodating cavity. The interface area 4 is provided with a plug hole and a switch key. The plug hole is used to plug the connecting wires of the encoding unit and the sensor unit. The first cover plate 5 and the second cover plate 3 are adsorbed and arranged with magnetic locks between the corresponding accommodating cavities, and a hand buckle is also provided on them for easy lifting.

[0087] Specifically, the box provided in the present invention adopts an imported brand box, which is light in weight, high in strength, and has the characteristics of being waterproof, anti-collision, dustproof, and corrosion-resistant. It is easy to carry to the site and can adapt to the test environment on site. Its internal structure design is mainly divided into a speed sensor placement area (first accommodating chamber 1), a power sensor placement area (second accommodating chamber 2), a power supply placement area (third accommodating chamber), an interface area 4, and a control system area (located below the battery 6 in the third accommodating chamber).

[0088] In order to facilitate signal transmission with remote equipment, the elevator energy consumption analyzer provided by the present invention preferably also includes: a wireless sensor unit.

[0089] The wireless sensor unit is connected to the processing unit 7. The wireless sensor unit is used to transmit the signal generated by the processing unit 7 to the remote device end, so that the remote device can receive data and perform interactive transmission of control instructions with the elevator energy consumption analyzer. The wireless sensor unit is preferably a Bluetooth transmission unit.

[0090] Based on the specific structure of the elevator energy consumption analyzer provided above, the circuit layout of its main components is as follows Figure 8 Its main parameters and performance indicators are shown in Table 3.

[0091] Table 3

[0092] Serial number name unit Product Parameters 1 Power supply V Built-in lithium battery DC5V 2 Energy consumption measurement range kW·h 0—30.99999 3 Energy consumption measurement resolution kW·h 0.00001 4 Speed ​​measurement range 10m / s 0—10 5 volume <![CDATA[mm 3 ]]> 470×357×176 6 weight kg 9.8kg 7 Operating temperature ℃ -10～55

[0093] The remote device used in the present invention is a laptop, tablet or smart phone. A software APP is implanted in the remote device. The software APP is designed based on Internet thinking and is compiled in JAVA language. The software can be used on mobile phones or PADs running on Apple or Android systems. The software can display test data in real time, save the data and generate reports, and share the reports online. For example, the display interface of the software APP on the mobile phone is as follows: Fig. 9 shown.

[0094] In this software APP, you can set the tester's name and unit according to actual needs, you can set the commissioning unit, elevator number, elevator rated load, traction ratio, and whether it has energy feedback function. The elevator's running speed, displacement and acceleration can be displayed in real time. At the same time, the three-phase real-time power, total power, real-time power consumption and cumulative power consumption can be displayed in real time. The elevator operating status, running direction, load factor, test duration can be set, and a test report can be generated to query the test data.

[0095] The following is a specific test process to illustrate the test method of the elevator energy consumption analyzer provided by the present invention. In the specific application process, the operator can make appropriate modifications to the specific steps and sequence of the operation according to actual needs and operation essentials.

[0096] The elevator mainly measures the main energy consumption during operation, the main energy in idle and standby states, the auxiliary energy during operation, and the auxiliary energy in idle and standby states. The specific test methods are as follows:

[0097] A. The main energy during operation is operated according to the following steps:

[0098] a) At the mains connection point, connect a current clamp to each phase of the mains cable;

[0099] b) If allowed, set the elevator to automatic terminal circulation mode, otherwise perform manual operation;

[0100] c) Run the empty car to the bottom terminal;

[0101] d) Start measuring;

[0102] e) Start the end station cycle test;

[0103] f) Stop after running at least 10 reference cycles;

[0104] g) Measure and record energy values;

[0105] h) record the number of reference cycles;

[0106] i) Divide the total energy by the number of reference cycles to obtain an average value and record this value. Additional measurements may be made at different travel distances or loads, but the travel distance or load must be recorded.

[0107] B. The main energy in idle and standby states follows the following steps:

[0108] a) At the mains connection point, connect a current clamp to each phase of the mains cable;

[0109] b) Run the car for one reference cycle;

[0110] c) After one reference cycle is completed, the energy value in the idle state within 1 minute is immediately recorded;

[0111] d) After the door is closed, the empty car is left at the bottom terminal for 5 minutes, and then the energy value in the standby state within 1 minute is recorded;

[0112] e) Divide the recorded energy value by the recorded time to calculate the idle power value in W and record the value;

[0113] f) Divide the recorded energy value by the recorded time to calculate the power value in the standby state in W and record the value.

[0114] C. Auxiliary energy during operation is operated according to the following steps:

[0115] a) At the mains connection point, connect a current clamp to each phase of the mains cable;

[0116] b) If allowed, set the elevator to automatic terminal circulation mode, otherwise perform manual operation;

[0117] c) Run the empty car to the bottom terminal;

[0118] d) Start measuring;

[0119] e) Start the end station cycle test;

[0120] f) Stop after running at least 10 reference cycles;

[0121] g) Measure and record energy values;

[0122] h) record the number of reference cycles;

[0123] i) Divide the total energy by the number of reference cycles to obtain an average value and record this value. Additional measurements may be made at different running distances, but the running distance must be recorded.

[0124] D. Auxiliary energy in idle and standby states follows the following steps:

[0125] a) At the auxiliary power connection point, connect the current clamp to the auxiliary power line;

[0126] b) Run the car for one reference cycle;

[0127] c) After one reference cycle is completed, the energy value in the idle state within 1 minute is immediately recorded;

[0128] d) After the door is closed, the empty car is left at the bottom terminal for 5 minutes, and then the energy value in the standby state within 1 minute is recorded;

[0129] e) Divide the recorded energy value by the recorded time to calculate the idle power value in W and record the value;

[0130] f) Divide the recorded energy value by the recorded time to calculate the power value in the standby state in W and record the value.

[0131] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0132] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An elevator energy consumption analyzer, characterized in that: include: Box body, encoding unit, sensor unit and processing unit; The encoding unit and the sensing unit are both connected to the processing unit; the encoding unit, the sensing unit and the processing unit are all placed in the box; The encoding unit is used to generate a circle code according to the operation of the elevator; the sensor unit is used to obtain the current and voltage when the elevator is running; the processing unit is used to determine the elevator running speed according to the circle code, to determine the running position according to the running speed, and to determine the running energy consumption according to the current and voltage; The encoding unit comprises: an encoder, an adsorption wheel set and a magnet; The encoder is connected to the adsorption wheel set; the encoder is used to record the number of rotations of the adsorption wheel set; The adsorption wheel group includes: a driving wheel and a driven wheel; The driving wheel and the driven wheel are connected through a transmission belt; the driving wheel is in contact with the steel rope of the elevator; the driving wheel is connected to the encoder; The magnet is mechanically connected to the adsorption wheel set; the magnet is used to adsorb the encoding unit at a set position of the elevator.

2. The elevator energy consumption analyzer according to claim 1, characterized in that: The sensing unit comprises: a current sensor, a voltage sensor and a three-phase current clamp; The three-phase current clamp is connected to the current sensor or the voltage sensor; the current sensor and the voltage sensor are both connected to the processing unit; During the detection process, the three-phase current clamp is hung on the set connection point of the elevator.

3. The elevator energy consumption analyzer according to claim 1, characterized in that: The processing unit is an APM processing chip.

4. The elevator energy consumption analyzer according to claim 1, characterized in that: The box body comprises: a first accommodating chamber, a second accommodating chamber, a third accommodating chamber, an interface area and a battery; The first accommodating cavity is used for placing the sensor unit; the second accommodating cavity is used for placing the encoding unit; the battery and the processing unit are both arranged in the third accommodating cavity, and the processing unit is located below the battery.

5. The elevator energy consumption analyzer according to claim 4, characterized in that: The box body also includes: a first cover plate, a second cover plate and an interface area; The first cover plate is arranged on the first accommodating cavity and the second accommodating cavity; the second cover plate is arranged on the third accommodating cavity; the interface area is provided with a plug hole and a switch key; the plug hole is used to plug in the connecting wires of the encoding unit and the sensing unit.

6. The elevator energy consumption analyzer according to claim 4, characterized in that: Also includes: Wireless sensor unit; The wireless sensor unit is connected to the processing unit; the wireless sensor unit is used to transmit the signal generated by the processing unit to a remote device.

7. The elevator energy consumption analyzer according to claim 6, characterized in that: The remote device is a laptop, tablet computer or smart phone.

Images