CN208454193U - A kind of sensor-based intelligent elevator detector - Google Patents
A kind of sensor-based intelligent elevator detector Download PDFInfo
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- CN208454193U CN208454193U CN201820970649.XU CN201820970649U CN208454193U CN 208454193 U CN208454193 U CN 208454193U CN 201820970649 U CN201820970649 U CN 201820970649U CN 208454193 U CN208454193 U CN 208454193U
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Abstract
The utility model discloses a kind of sensor-based intelligent elevator detectors, including signal acquisition unit, signal memory cell, Power Management Unit, signal acquisition main control unit, microprocessor and man-machine interaction unit；The signal acquisition unit is used to acquire the acceleration of elevator, signal memory cell for saving collected signal in the form of a file, power management module is used to power for remaining element, signal acquisition main control unit is for controlling the acquisition of signal, the storage of signal, the management of power supply and providing communication interface and I/O mouthfuls, microprocessor is for handling signal, the speed of service, vibration peak-to-peak value, A95 value, the calculating for vibrating weighted including elevator, man-machine interaction unit is for providing human-computer interaction interface.The invention also discloses a kind of sensor-based intelligent elevator detection methods.The utility model realizes the detection and analysis at scene, improves detection efficiency.
Description
Technical field
The utility model relates to elevator detection technique field more particularly to a kind of sensor-based intelligent elevator detections
Instrument.
Background technique
Elevator is that accurate means of transport up and down is constructed in building, is that collection is built, mechanical, electric appliance is setting for integration
Standby, regularly systematicness maintenance and the maintenance of specification not only can ensure that the use longevity of elevator safety reliability service, elongated component
Life, and failure or hidden danger can be found in time or in advance, and then reduce elevator faults to the maximum extent, guarantee the safety of equipment
It can be used with reliable.
It is provided according to GB/T10058-2009, the running quality in running process of elevator should meet: horizontal direction vibration
Peak-to-peak value is no more than 0.2m/s2, and A95 value is no more than 0.15m/s2；Vertical vibration peak-to-peak value is no more than 0.3m/s2, A95 value
No more than 0.25m/s2；Actual motion speed should meet the 92%-105% of normal speed.If elevator ride quality is not met
Above-mentioned requirements need that elevator is safeguarded and adjusted in time, it is ensured that comfort when passenger takes.
Traditional elevator ride quality detection analyzes method disconnected from each other using data acquisition and data, and collector is logical
Three direction acceleration transducers acquisition car movement data is crossed, then computer is transferred to by USB flash disk or data line, uses computer software
Carry out data analysis.This conventional method can not determine rapidly whether elevator ride quality meets the requirements in elevator on-site, and
The larger workload of data processing.In China, elevator ownership continues under the increased background of high speed, it is clear that this conventional method is
It can not effectively be ensured the development of detection efficiency and follow-up maintenance adjustment work.
Utility model content
The purpose of this utility model is to provide a kind of sensor-based intelligent elevator detectors, realize the inspection at scene
It surveys and analyzes, improve detection efficiency.
To achieve the above object, the utility model provides the following technical solutions:
A kind of sensor-based intelligent elevator detector, which is characterized in that single including signal acquisition unit, signal storage
Member, Power Management Unit, signal acquisition main control unit, microprocessor and man-machine interaction unit；The signal acquisition unit, signal
Storage unit, signal acquisition main control unit, microprocessor and man-machine interaction unit are sequentially connected；The signal acquisition unit is used for
The acceleration of elevator is acquired, signal memory cell for saving collected signal in the form of a file, power management module
For for remaining element power supply, signal acquisition main control unit for control the acquisition of signal, the storage of signal, the management of power supply and
Communication interface and I/O mouthful are provided, microprocessor for handling signal, the speed of service including elevator, vibrate peak-to-peak value,
A95 value, the calculating for vibrating weighted, man-machine interaction unit is for providing human-computer interaction interface.
Further, the signal acquisition unit uses 3-axis acceleration sensor ADXL345, and wherein X-axis is perpendicular to electricity
The traffic direction of ladder and its forward direction are directed toward elevator door, and for Y-axis forward direction perpendicular to the left right carriage wall of carriage, Z axis forward direction is directed toward elevator
The direction of motion.
Further, the signal memory cell is using SD card as storage medium.
Further, the Power Management Unit includes external adapter, lithium battery, input-switching circuit and battery charging
Circuit, external adapter and lithium battery are respectively connected to two input terminals of input-switching circuit, battery charger and lithium electricity
Pond connection.
Further, the signal acquisition main control unit uses SiM3C167 main control chip.
Further, the microprocessor uses the AM3358 of TI company, is mounted in BeagleBone Black and opens
It sends out on plate.
Further, the man-machine interaction unit includes CPLD and digital touch tablet, the microprocessor with
CPLD connection, CPLD are connect with digital touch tablet.
Compared with prior art, the utility model has the beneficial effects that the utility model, which will test, is integrated in inspection with analysis
It surveys in instrument, when detection, detector can be directly placed in elevator, realized the detection and analysis at scene, after detection, be will test
Instrument is taken away, and with traditional detection compared with the method that analysis is separated from each other, the detection efficiency of the utility model is higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Fig. 2 is the peripheral circuit diagram of the SiM3C167 main control chip of the utility model.
Fig. 3 is the circuit diagram of the Power Management Unit of the utility model.
Fig. 4 is the power management chip schematic diagram of the utility model.
Fig. 5 is the man-machine interaction unit circuit connection diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of sensor-based intelligent elevator detector, including signal acquisition list
Member, signal memory cell, Power Management Unit, signal acquisition main control unit, microprocessor and man-machine interaction unit；The signal
Acquisition unit, signal memory cell, signal acquisition main control unit, microprocessor and man-machine interaction unit are sequentially connected；The letter
Number acquisition unit is used to acquire the acceleration of elevator, and signal memory cell for protecting collected signal in the form of a file
It deposits, power management module is used to power for remaining element, and signal acquisition main control unit is used to controlling the acquisition of signal, signal is deposited
Storage, the management of power supply and communication interface and I/O mouthful are provided, microprocessor is used to handle signal, the operation including elevator
Speed, vibration peak-to-peak value, A95 value, the calculating for vibrating weighted, man-machine interaction unit is for providing human-computer interaction interface.
GBT/10058-1997 elevator technology condition regulation, passenger lift starting acceleration and braking deceleration maximum value are equal
It should not exceed 1.5m/s2, the vibration acceleration of carriage vertical direction and horizontal direction is (in time domain oscillating curve when even running
Single peak) it should not exceed 25m/s respectively2And 15m/s2.In addition, human body is only limitted to low-frequency range, test system to the sensitive frequency of vibration
System should have preferable low frequency characteristic.Therefore should select low frequency characteristic it is good, can zero-frequency response, high sensitivity, dynamic characteristic it is good
Sensor.In this present embodiment, the signal acquisition unit is using 3-axis acceleration sensor ADXL345 to acceleration signal
It is acquired, wherein traffic direction and its forward direction direction elevator door of the X-axis perpendicular to elevator, a left side of the Y-axis forward direction perpendicular to carriage
Right carriage wall, Z axis forward direction are directed toward the direction of motion of elevator.
ADXL345 is a 3 very light and handy axis accelerometers, and using 3mm*5mm*1mm, 14 pin packages, power consumption is super
Low, high resolution (13), measurement range reaches ± 16g, is very suitable to mobile device application, pictorial diagram is as shown in Figure 2.
The digital output data of ADXL345 is 16 complement of two's two's complement formats, can be accessed by IIC digital interface or SPI, wherein SPI
Access can be divided into 3 lines and 4 lines again, and the data mode with the number of ways of processor may be implemented.General static
In the state of, it can be used to measure static weight acceleration.Under movement or impact conditions, ADXL can be used to measure dynamic
Acceleration.By comparing the acceleration on the threshold value of user setting and any axis, to judge activity and stationary state detection function
Difference.The high-resolution of 3.9mg/LSB can guarantee that ADXL345 measures the angle change less than 1 °, also be the device
A variety of special detection functions are provided.These functions can be mapped individually by one in two interrupt output pins.
ADXL345 is managed integrated memory using one 32 grades first in first out (FIFO) buffer, can be used for temporarily depositing
Collected data are put, to reduce the load of processor, reduce system operation power consumption.Such low-power consumption mode is conducive to
The intelligent management of power supply, so that acceleration of motion measurement and threshold value sensing are carried out in low-down power consumption.
In this present embodiment, detection system needs systematically, neatly to manage detection signal, so storage medium must have
Following signals storage characteristics: data storage capacity is high, data transmission speed is fast, easy to carry splendid with safety.Therefore the letter
Using SD card as storage medium, SD card has the characteristics that large capacity and high data transmission rate for number storage unit, use extensively
Electronic product is stored in data.
In this present embodiment, the signal acquisition main control unit uses SiM3C167 main control chip.SiM3C167 master control core
Piece is mainly responsible for the functions such as accelerometer data samples, power supply managing, system clock management, needs to consider main control chip clock
Frequency, data communication interface, general purpose I/O port demand.SiM3C167 uses 32- ARM Cortex-M3CPU, has more
Fast interruption speed carries out interrupt processing based entirely on hardware, can at most reduce by 12 clock periodicities, in practical applications may be used
70% is reduced to interrupt.The system clock of maximum clock frequency 80MHz, highest 256KB flash memory and 32KB SRAM, two-way I2C communication
Interface, 65 tunnel general purpose Is/O pin, using 1.8V-3.3V low-voltage power supply mode, chip power-consumption is low, and efficiency is high.SiM3C167 master
It is as shown in Figure 2 to control chip periphery circuit.
Referring to figure 3., the Power Management Unit includes that external adapter, lithium battery, input-switching circuit and battery fill
Circuit, external adapter and lithium battery are respectively connected to two input terminals of input-switching circuit, battery charger and lithium
Battery connects, and in figure, load is remaining functional unit of detector, and corresponding translation circuit is arranged before different loads.Electricity
Source control unit provides external adapter and two kinds of powering modes of lithium battery；By power management chip realize adapter power supply with
Lithium battery power supply flexibly switches.Instrument uses 7 cun of capacitance touch control flows and dominant frequency for 300MHz ARM7 high speed processing
Device, two parts power consumption account for a big chunk that instrument can all be done, and want to ensure that instrument battery durable ability can satisfy design
It asks, instrument overall power is considered, using high-capacity lithium-ion polymer battery.As shown in figure 4, power management chip uses
MAXIM company power management chip, the chip can be simultaneously using USB power source or AC AC adapter to single-unit 18650 lithium electricity
Pond is charged, and has battery input pattern handoff functionality, and when external power supply access, system power supply is directly mentioned by external power supply
It cuts off the power output for, battery module.In simplest application, which is not needing external MOFET or two poles
Under the conditions of pipe, it is able to bear the DC input voitage of external highest 6.5V, in the case of using external MOSFET, is able to bear most
The DC voltage of high 18V.Chip has heat protection function, simplifies board design layout, supplies in the power supply of worst battery or outside
Under electric condition, chip is allowed to carry out optimized rate charging in no Thermal protection.When chip operating temperature reaches protection
Temperature, chip will not stop working, but reduce charging current.Environment or battery temperature are able to detect using thermistor,
When external temperature exceeds operating temperature range, chip does not work.Therefore, which can satisfy design requirement, real
The optimum management of existing external power supply and battery power.Power supply is provided by lithium battery when analyzer works normally, works as electric quantity of lithium battery
It need to access external power supply when insufficient and be powered, is charged to lithium battery, is carried out to instrument
Power supply, lithium battery cuts off supplying power for outside at this time.When lithium battery voltage reaches voltage rating, power management chip stops charging.
In this present embodiment, the microprocessor use TI company AM3358, although increase development difficulty and
Control panel design difficulty, but this processor can be very good the function of completing to need.It is noted that AM3358 processor is taken
It is loaded on BeagleBone Black development board, which is integrated with ARMCortex-A8 kernel, and provides abundant outer
If interface, the length is 86.36inm, width 54.61mm to be suitble to be placed on above aircraft.The electric current of its work is
0.35A belongs to low-power consumption development board.
The expansion interface of BeagleBone Black include network interface, USB Host, USB OTG, TF card interface, serial ports,
Jtag interface, HDMI interface, eMMC, ADC, EC, SPI, PWM and LCD screen interface, wherein there is 5 road serial ports, highest supports 8 road PWM
Output, and have a USB Host interface, face increases a USB HUB on this interface, then can satisfy the flight of four axis
Required whole interfaces in device design.In addition, the development board has HDMI interface, desktop operating system is supported, support most
High-resolution is 1280x1024.The GPU of BeagleBone Black is PowerVR SGX530, inside saves as F512MB's
DDR3 includes 4GB eMMC memory.
In this present embodiment, referring to figure 5., the man-machine interaction unit includes CPLD and digital touch tablet, institute
It states microprocessor to connect with CPLD, CPLD is connect with digital touch tablet.Touch tablet is connected with CPLD, and by AM3358's
The choosing of NCS4 piece.CPLD acts as the role of touch tablet controller, and the lead of digital touch tablet is all connected on CPLD, by
CPLD controls the input and output of digital touch tablet.According to the structure of digital touch tablet, digital touch tablet
Ranks lead is divided into KeyIn and two groups of KeyOut, and in row is KeyOut group, and in column is KeyIn group.KeyIn group every is drawn
There is pull-up resistor in outlet, when not having point contact, the signal in KeyIn group is high level.CPU passes through the piece to CPLD
Choosing and read-write, row signal by being transmitted to the KeyOut group of touch screen after data/address bus and CPLD.When initial in KeyOut group
Signal is low level.When there is point contact, the signal on certain root or several leads in KeyIn group becomes low level, through CPLD
Afterwards, it is transformed into interrupt signal and inputs to CPU, to triggers the interruption of CPU.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (7)
1. a kind of sensor-based intelligent elevator detector, which is characterized in that single including signal acquisition unit, signal storage
Member, Power Management Unit, signal acquisition main control unit, microprocessor and man-machine interaction unit；The signal acquisition unit, signal
Storage unit, signal acquisition main control unit, microprocessor and man-machine interaction unit are sequentially connected；The signal acquisition unit is used for
The acceleration of elevator is acquired, signal memory cell for saving collected signal in the form of a file, power management module
For for remaining element power supply, signal acquisition main control unit for control the acquisition of signal, the storage of signal, the management of power supply and
Communication interface and I/O mouthful are provided, microprocessor for handling signal, the speed of service including elevator, vibrate peak-to-peak value,
A95 value, the calculating for vibrating weighted, man-machine interaction unit is for providing human-computer interaction interface.
2. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the signal acquisition list
Member uses 3-axis acceleration sensor ADXL345, wherein traffic direction and its forward direction direction elevator door of the X-axis perpendicular to elevator, Y
Left right carriage wall of the axis forward direction perpendicular to carriage, the direction of motion of Z axis forward direction direction elevator.
3. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the signal storage is single
Member is using SD card as storage medium.
4. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the power management list
Member includes external adapter, lithium battery, input-switching circuit and battery charger, and external adapter and lithium battery are separately connected
To two input terminals of input-switching circuit, battery charger is connect with lithium battery.
5. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the signal acquisition master
It controls unit and uses SiM3C167 main control chip.
6. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the microprocessor is adopted
With the AM3358 of TI company, it is mounted on BeagleBone Black development board.
7. sensor-based intelligent elevator detector according to claim 1, which is characterized in that the human-computer interaction list
Member includes CPLD and digital touch tablet, and the microprocessor is connect with CPLD, and CPLD is connect with digital touch tablet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820970649.XU CN208454193U (en) | 2018-06-22 | 2018-06-22 | A kind of sensor-based intelligent elevator detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820970649.XU CN208454193U (en) | 2018-06-22 | 2018-06-22 | A kind of sensor-based intelligent elevator detector |
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| CN208454193U true CN208454193U (en) | 2019-02-01 |
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