CN103149481A - Comprehensive electrically propelled wheelchair tester - Google Patents
Comprehensive electrically propelled wheelchair tester Download PDFInfo
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- CN103149481A CN103149481A CN2013100590714A CN201310059071A CN103149481A CN 103149481 A CN103149481 A CN 103149481A CN 2013100590714 A CN2013100590714 A CN 2013100590714A CN 201310059071 A CN201310059071 A CN 201310059071A CN 103149481 A CN103149481 A CN 103149481A
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Abstract
The invention relates to a comprehensive electrically propelled wheelchair tester comprising a power supply module and further comprising a processor, an electric parameter monitoring module and a motion parameter measuring module, wherein the power supply module is used for providing a power supply for an electrically propelled wheelchair tester; the electric parameter monitoring module is used for monitoring driving voltage and current outputted by the electrically propelled wheel chair power supply in real time, and transmitting collected real-time voltage and current signals to the processor to carry out the operation process; the motion parameter measuring module is used for simultaneously measuring the travels of a left wheel and a right wheel of an electrically propelled wheelchair and transmitting measurement signals to the processor to carry out the operation process so as to realize the detection in the speeds of a left motor and a right motor of the electrically propelled wheelchair. The comprehensive electrically propelled wheelchair tester disclosed by the invention can simultaneously measure electric parameters and motion parameters of the electrically propelled wheelchair, can measure the integral property of the electrically propelled wheelchair, and carries out the delivery inspection and the parameter correction according to the test result.
Description
Technical field
The present invention relates to a kind of electric wheelchair tester, relate in particular to and a kind ofly can measure simultaneously electric wheelchair voltage, electric current, speed, acceleration, stroke and the wheel shaft isoparametric composite type electric wheelchair of beating.
Background technology
Existing electric wheelchair testing tool only can be tested a certain parameter wherein, its a certain performance is estimated, as dynamic parameters such as voltage, electric current or strokes; And in the testing tool of the electric vehicle of other near field, its test monitoring purpose is more single, mainly take speed as leading and attach some functions, such as the test to battery electric quantity, temperature etc.
See also China Patent Publication No. CN2650142Y, a kind of electric vehicle appliance comprehensive measuring instrument is disclosed, it comprises a circuitry, formed by handgrip voltage test module, internal charger module, charger test module, controller test circuit, Switching Power Supply, each modular circuit has independent test function, and the electrical quantity that can satisfy auto electrical appliance carries out qualitative and quantitative analysis.This patent is mainly carried out independent measurement to the electrical equipment of electric motor car, relates generally to electrical quantity, and the parameters such as the stroke of electric motor car, speed are not detected, thereby can't test to the overall performance of electric motor car.
And, electric wheelchair adopts Dual-motors Driving, it relies on speed discrepancy to realize the actions such as turning and rotation, the proving installation that is applicable to electric motor car can't be realized the monitor and detection to bi-motor speed, test has incompatibility to wheelchair, and it can not be estimated the one-piece construction of electric wheel-chair vehicle and the rationality of circuit.
In view of defects, creator of the present invention has obtained this creation finally through long research and practice.
Summary of the invention
This purpose is to provide a kind of composite type electric wheelchair tester, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of composite type electric wheelchair tester, it comprises a power module, and in order to provide power supply to described tester, it also comprises:
One processor;
One electrical quantity monitoring module, driving voltage and the electric current of its Real Time Monitoring electric wheelchair power supply output, and real-time voltage and the current signal transfer that gathers carried out calculation process to described processor;
One movement parameter measurement module, it measures revolver and the right stroke of taking turns of described electric wheelchair simultaneously, and metrical information is transferred to carries out calculation process in described processor, in order to realize the detection to electric wheelchair left and right motor speed and electric wheelchair acceleration.
Better, described electric wheelchair tester also comprises an expansion module, it is connected with described processor, tests in order to the overall performance parameter to described electric wheelchair.
Better, described electric wheelchair tester also comprises a display operation module, its result with electrical quantity, kinematic parameter and overall performance parameter that described processor calculating is processed shows, and by the operator, tester is operated.
Better, described movement parameter measurement module comprises:
One optoelectronic switch, it carries out pulse scanning to the revolver of electric wheel-chair vehicle and right wheel, induction vehicle wheel rotation position;
One sensor block, it is arranged on the revolver and right spoke of taking turns of electric wheel-chair vehicle, and is relative with described optoelectronic switch scanning end;
One photoelectric isolating circuit, it carries out the photoelectricity isolation processing with the scanning pulse signal that described optoelectronic switch sends, and the communication after processing is to described processor.
Better, described movement parameter measurement module also comprises:
One mount pad, it is in order to support described optoelectronic switch;
One installs fixture block, and it coordinates with described mount pad, in order to described mount pad is fixed on the left and right support of taking turns side of wheelchair.
Better, described electric wheelchair tester also comprises:
One fixed mount, it is arranged on described electric wheelchair tester lower end, in order to described electric wheelchair tester is fixed on the handrail of described electric wheelchair;
One expansion interface, it is arranged on the shell of described electric wheelchair tester, and it is a USB interface, and it transmits by serial data and connects computing machine or described expansion module, carries out exchanges data;
One optoelectronic switch interface, it is arranged on described electric wheelchair tester shell, and it is row's needle interface, and it transfers in described electric wheelchair tester in order to the metrical information with described movement parameter measurement module.
Better, described expansion module is a ultrasonic distance measuring module, and described ultrasonic distance measuring module comprises a ultrasonic sensing stadimeter, and it is arranged on the rear end of described wheelchair, in order to the fluctuation information of testing wheel Wheel-chair wheel diameter maximum.
Better, described electrical quantity monitoring module comprises:
One voltage branch circuit is provided with divider resistance on it, carry out stepping during tested voltage signal access and process, to satisfy the high-precision requirement of tester;
One shunt, it shunts tested current signal, to improve the measuring accuracy of tested current signal;
One current amplification circuit, it comprises that a High Precision Low Temperature floats anti-tampering operational amplifier, amplifies in order to described shunt output current is carried out secondary.
Better, described ultrasonic distance measuring module also comprises:
One adjuster bar, its two ends are connected with end support after described wheelchair, and described ultrasonic sensing stadimeter is installed on it;
One MCU processor, it is placed in described ultrasonic sensing stadimeter, and its fluctuation information to measured wheel chair wheel is processed, and analyzes the situation of beating of described electric wheelchair wheel;
One serial ports data transmission circuit, the data timing after it processes the MCU processor is transferred in described processor.
Better, described display operation module comprises:
One liquid crystal display circuit, its output information with described processor transfer to a liquid crystal display and show;
One LED circuit, its output information with described processor transfers on the function LED that is connected with described LED circuit;
One key circuit, its with the operation push-button communication on tester to the described processor.
Better, described tester also comprises a hardware watchdog, it comprises a timer circuit, and is connected to the reset terminal of processor connecting circuit.
Beneficial effect of the present invention is compared with the prior art: described electric wheelchair tester can be measured its electrical quantity and kinematic parameter simultaneously, metrical information is processed through described processing, speed and current curve, acceleration and the voltage curve of output, whether the load capacity, energy consumption and the circuit that reflect wheelchair are in safety current, whether line design is reasonable, help to select suitable electric component, circuit reasonable in design and stable complete vehicle structure; Adopt optoelectronic switch, can realize simultaneously the monitor and detection to electric wheelchair left and right motor, can eliminate the deviation phenomenon of wheelchair; Adopt beating of ultrasonic measurement wheel, be convenient to repair, to extend the serviceable life of wheelchair; Be provided with a display operation module, realize that data show visual; Described tester is installed on handrail, and convenient operation the person debug.
Description of drawings
Fig. 1 is the schematic diagram of composite type electric wheelchair tester of the present invention;
Fig. 2 is the functional block diagram of composite type electric wheelchair tester of the present invention preferred embodiment;
Fig. 3 is the processor connecting circuit schematic diagram of composite type electric wheelchair tester of the present invention preferred embodiment;
Fig. 4 is the voltage branch circuit figure of composite type electric wheelchair tester of the present invention;
Fig. 5 is the current amplification circuit figure of composite type electric wheelchair tester of the present invention;
Fig. 6 is the optoelectronic switch scheme of installation of composite type electric wheelchair tester of the present invention;
Fig. 7 is the photoelectric isolating circuit figure of composite type electric wheelchair tester of the present invention;
Fig. 8 is the scheme of installation of the ultrasonic sensing stadimeter of composite type electric wheelchair tester of the present invention;
Fig. 9 is the expansion module circuit diagram of composite type electric wheelchair tester of the present invention;
Figure 10 is the serial data transmission circuit schematic diagram of composite type electric wheelchair tester of the present invention;
Figure 11 is the rear view of composite type electric wheelchair tester of the present invention;
Figure 12 is the watchdog circuit figure of composite type electric wheelchair tester of the present invention.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1, it is for the schematic diagram of composite type electric wheelchair tester of the present invention, in this tester, its its main operational control section is a processor 1, it carries out the real-time operation processing to data that an electrical quantity monitoring module 2, a movement parameter measurement module 3 and an expansion module 4 gather, and passes through the net result of display operation module 5 Graphics Processings.Composite type electric wheelchair tester of the present invention, wherein, described electrical quantity monitoring module 2, described movement parameter measurement module 3 and described expansion module 4 have consisted of the monitor and detection part of composite type electric wheelchair tester of the present invention, described electrical quantity monitoring module 2, driving voltage and electric current in order to the output of Real Time Monitoring electric wheelchair power supply, and with the voltage that gathers, current signal transfer to described processor 1, and show in described display operation module 5; Described movement parameter measurement module 3, it measures revolver and the right stroke of taking turns of described electric wheelchair simultaneously, and metrical information is transferred in described processor 1 carry out calculation process, in order to realize the detection to electric wheelchair left and right motor speed and electric wheelchair acceleration; Described expansion module 4 is connected with described processor 1, tests in order to the overall performance parameter to described electric wheelchair; Described expansion module 4 carries a MCU processor, and detection information transfers to described processor 1 after described MCU processor is processed; Described display operation module 5 is presented at the result of electrical quantity, kinematic parameter and the overall performance parameter of described processor 1 calculation process on one display, and described display is subjected to the button input control; Described power module 6 provides power supply in order to each module to described electric wheelchair tester.
see also shown in Figure 2, it is for the functional block diagram of composite type electric wheelchair tester of the present invention preferred embodiment, in the present embodiment, described processor 1 is a single-chip microcomputer, it can be MC-51, AT89C52, STC89C52 the compute chip such as 51, be described at this single-chip microcomputer that is STC12C5A16S2 to main process chip, its built-in 8K * 8EEPROM erasable memory, theory can 20 groups of data of follow-on test (every group data sampling 20 times), carry out Fragmentation according to the data difference, wipe by page when wiping, described scm software programming adopts the C language to get final product, it revises convenient, portable strong.And, described main process chip carries the ADC conversion, when the simulating signals such as test voltage, electric current, simulating signal carries out can directly accessing after amplification filtering is processed the ADC translation interface of described processor 1, so that described processor 1 pair of electric current, voltage signal are processed.
See also shown in Figure 3, it is for the processor connecting circuit schematic diagram of composite type electric wheelchair tester of the present invention preferred embodiment, and in conjunction with shown in Figure 2, the connecting circuit of described processor 1 be provided with described electrical quantity monitoring module 2 in the port (not shown in FIG.) that is connected with current amplification circuit 27 of voltage branch circuit 24, the electrical quantity data that detect in order to transmission; Serial ports connectivity port 110, it is connected with serial data transmission circuit 44 in described expansion module 4, in order to transmit ultrasonic test data, can also be connected with the external pc port of processor 1, carry out the PC on-line operation, data read and file, dispatch from the factory the operations such as technical parameter file and printing reports; Liquid crystal display control end 113, its port with described liquid crystal display circuit 55 is connected, in order to described liquid crystal display 56 is controlled in real time; Key-press input interface 112, it is connected with described key circuit 53; Pulse inquiry entrance 111, it is connected with photoelectric isolating circuit 31 in described movement parameter measurement module 3, detects in order to pulse signals; LED output interface 114, it is connected with described LED circuit 51, controls in order to the duty to described function LED52; Described processor 1 is computing and the control core of whole test macro, is stored with the various operation programs that detection signal is processed.
In the present invention, the power supply of the electrical quantity monitoring module of tester 2 tests is wheelchair primary power 21, is provided with a plug on described tester, and the first wife SA50 plug that it adopts compatible PG system namely is applicable to the vehicle of all these systems, and it has higher universality.Please in conjunction with shown in Figure 2, described tester is processed its voltage signal and current signal after gathering wheelchair primary power 21, and these two parameters of voltage and current are important projects of this tester test, and its measuring accuracy is even more important.
See also shown in Figure 4, it is for the voltage branch circuit figure of composite type electric wheelchair tester of the present invention, in the present embodiment, tested voltage signal is 24V ± 4V, will carry out stepping when access processes, be provided with divider resistance R22 and R23 in described voltage branch circuit 24, the one end picks out respectively the 1st gear and the 2nd gear, described the 1st gear voltage is between 0-5V, described the 2nd gear voltage is between 0-50V, to satisfy higher measuring accuracy demand, described voltage signal is inputted described processor 1 and is processed through after voltage branch circuit 24.
see also shown in Figure 5, it is for the current amplification circuit figure of composite type electric wheelchair tester of the present invention, in the present embodiment, when tested current signal is between 0-30A, need to increase shunt 26, please in conjunction with shown in Figure 2, described shunt 26 specifications are 75mV/50A, after increasing shunt 26, tested electric signals only has 0-75mV, needing again this signal to be carried out precision amplifies, in the present embodiment, adopting the F030 High Precision Low Temperature to float anti-tampering operational amplifier amplifies, be characterized in to carry out secondary and amplify (as shown in Figure 5), enlargement factor can arrive 100 times, its operational formula is as shown in calculating formula (1),
Wherein, I is the output current of described current amplification circuit 27, U
aBe the magnitude of voltage of surveying.
Described current signal is processed through transferring to described processor 1 after shunt 26 and current amplification circuit 27 processing.
Electric current and the voltage signal of the described electrical quantity monitoring module 2 described wheelchair primary powers 21 of Real Time Monitoring, it reflects the energy consumption of wheelchair to a certain extent, whether circuit is under the safety current duty, and whether line design is reasonable.
The difference of electric wheelchair and electric motor car is, electric wheelchair uses Dual-motors Driving, its left and right wheels respectively connects a motor, rely on speed discrepancy to realize the actions such as turning and rotation, but due to the difference of motor itself, can cause speed difference as internal resistance, permanent magnet magnetic etc., when the wheelchair moving linearly, deviation phenomenon may occur in it, so must regulate setting under authentic data when motor coupling and Default Value.
Movement parameter measurement module 3 of the present invention can satisfy the demand, please in conjunction with shown in Figure 2, it comprises optoelectronic switch 33 and erecting device thereof, photoelectric isolating circuit 31, and described optoelectronic switch 33 is simultaneously to wheelchair revolver 32 with wheelchair is right takes turns 34 and carry out pulse scanning, induction vehicle wheel rotation position.See also shown in Figure 6, it is composite type electric wheelchair tester optoelectronic switch scheme of installation of the present invention, it comprises a sensor block 331, it is directly installed on wheelchair revolver 32 and wheelchair is right takes turns on 34 spoke, step up with the fixture block screw, it can be regulated according to the installation site of optoelectronic switch 33, and is relative with the scanning end of described optoelectronic switch 33; Also comprise an optoelectronic switch mount pad 332, in order to support described optoelectronic switch 33; One installs fixture block 335, and it coordinates with described mount pad 332, in order to described mount pad 332 is fixed on the left and right support of taking turns side of wheelchair.
See also shown in Figure 7, it is for the photoelectric isolating circuit figure of composite type electric wheelchair tester of the present invention, described optoelectronic switch 33 sends scanning pulse signal, through after photoelectric isolating circuit 31 carries out the photoelectricity isolation processing, with the vehicle wheel rotation communication to described processor 1.When the vehicle wheel rotation of described wheel-chair, sensor block 331 on described left and right wheels is with vehicle wheel rotation, every one week of rotation of wheel, once induction occurs with described sensor block 331 in described optoelectronic switch 33, described optoelectronic switch 33 with induced signal in 31 of described photoelectric isolating circuits are delivered to described processor 1.In described processor 1, stroke adopts counter to interrupt accumulative total, girth of taking turns left and right according to wheelchair and unit pulse computation of Period stroke, measure the time between each recurrent pulse, get wheelchair speed by stroke divided by Time Calculation, then deduct the speed of upper one-period with present speed, divided by the cycle, can obtain the acceleration in the monocycle, and by the positive and negative differentiation acceleration of numerical value and retarded velocity.The calculation procedure of the trip, speed and acceleration is stored in described processor 1.
The velocity amplitude of bi-motor is measured and got through described processor 1 computing to described movement parameter measurement module 3, described processor 1 contrasts two-wheel speed, calculate the velocity error of two-wheeled, and the parameter of proofreading and correct the wheelchair manipulater according to this error amount, guarantee that wheelchair can straight line moving, described manipulater is positioned on the handrail of wheelchair; And, the velocity variations of wheel affects the vibrations of wheel, install when car load and coordinate, steadily of centre of gravity, front and back wheel is firm, and the vibrations of wheel and car load are very little, so the situation of the situation of change reflection current car load of wheel vibrations under certain speed, in order to better design the structure of wheelchair, improve the wheelchair life-span; Speed also affects the Changing Pattern of electric current simultaneously.
Substitute mode as the present embodiment, described wheelchair velocity test mode can also adopt electromagnetic type Hall switch, infrared switch, it also can realize the test to left and right motor speed and wheelchair stroke, and its pulse signal trigger theory and above-mentioned optoelectronic switch are basic identical, does not do tired stating at this.
described expansion module 4 can be preferably a ultrasonic distance measuring module, it can also be the light modulated ranging phase method, the spectrum range finding, the modules such as laser ranging, described ultrasonic distance measuring module comprises a ultrasonic sensing stadimeter 42 in the present embodiment, see also shown in Figure 8, it is for the scheme of installation of composite type electric wheelchair tester ultrasonic sensing stadimeter of the present invention, be provided with the ultrasound wave emission on described ultrasonic sensing stadimeter 42 and accept mould 423, described ultrasonic sensing stadimeter 42 is installed on one and can regulates on pole 424, described pole 424 two ends regulated are provided with mounting blocks 425, describedly regulate pole 424 and be connected with end support after wheelchair, and parallel with described wheelchair wheel direction of principal axis, guarantee the fluctuation of described ultrasonic sensing stadimeter 42 induction wheel diameter maximums.
Described ultrasonic sensing stadimeter 42 is by the emission of the ultrasound wave on it and accept mould 423, the fluctuation information of test wheel chair wheel 41 diameter maximums, and this information is processed.See also shown in Figure 9, it is for the expansion module operating circuit of composite type electric wheelchair tester of the present invention, be provided with clock chip DS12C887, thermal module DS18B20 and a MCU processor 43 in described ultrasonic sensing stadimeter 42, in the present embodiment, described MCU processor 43 adopts 8 chips of STC89C52, work dominant frequency 12MHZ carries out calculation process in order to the fluctuation information to the wheel chair wheel 41 of input, analyzes the situation of beating of wheel chair wheel; Described thermal module is in order to compensation and revise the error that ultrasound wave Yin Wendu brings, and guarantees its measuring accuracy; Described clock chip carries out data transmission by external USB serial ports, and reading also of time data obtains by described serial communication simultaneously.
Described ultrasonic sensing stadimeter 42 1 ends also are provided with a data transmission interface 421, in order to carry out data transmission with described processor 1, adopt serial communication to carry out exchanges data between described expansion module 4 and described processor 1, see also shown in Figure 10, it is composite type electric wheelchair tester serial data transmission circuit schematic diagram of the present invention, in figure, A is controlled to be described processor 1, B is controlled to be the MCU processor 43 in expansion module, in the present embodiment, described serial data transmission circuit 44 adopts USB interface to carry out exchanges data.Described MCU processor 43 arranges the ultimate range that wheel allows, and the distance of measuring in real time is poor with this ultimate range, and its difference is runout error, and described MCU processor 43 is according to the variable in distance situation, i.e. the situation of beating of runout error analysing vehicle wheels.
The described expansion module 4 rear initialization system that powers on, ultrasonic sensing stadimeter 42 begins to detect the fluctuation of described wheel chair wheel 41, gained fluctuation data transmission to described MCU processor 43 is processed, draw runout error, and the data after processing are transferred in processor 1 regularly through serial data transmission circuit 44 and process.
The left and right wheel when motor shaft and vehicle frame installation of electric wheelchair is prone to extremely, produce slight jumping phenomena when causing vehicle wheel rotation, this beats described expansion module 4 by ultrasound examination, and repairs to eliminate to take turns thereafter and beat, to extend the serviceable life of wheelchair.
Measurement data in above-mentioned electrical quantity monitoring module 2, movement parameter measurement module 3 and expansion module 4 transfers to described display operation module 5 and carries out visualization display after described processor 1 calculation process.described display operation module 5 comprises liquid crystal display 56, operation push-button 54, function LED52, described liquid crystal display 56 adopts 128 * 64 matrix form display panels, simultaneously Chinese display and image, its every row can show 8 Chinese characters, 16 English and symbol, the support dynamic picture is processed, therefore can realize that data manifest in the coordinate mode, each display frame all can be switched by corresponding operation push-button 54, described processor 1 transfers to liquid crystal display 56 by liquid crystal display circuit 55 with output signal, drive the kinematic parameter that it shows described processor 1 calculation process gained, electrical quantity, the peripheral hardware condition, the axle metrical information such as beat, can also show the performance graph schematic diagram, it is the electric current of processor 1 calculation process, voltage is with the stroke change curve, the wheel vibrations are with speed change curves, described processor 1 drives described function LED52 by a LED circuit 51, and described function LED52 is common light emitting diode, and its duty is controlled by described processor 1, described operation push-button 54 is arranged on described tester outside surface, it comprises beginning, pause button, the displaying contents switching push button, parameter arranges key, the upper and lower key that turns over, reset key and image demonstration/array switching key, described operating buttons 54 transfers to input message in described processor 1, for its processing by a key circuit 53.
Described display operation module 5 can also adopt LCD1602,1606 or the segment code type display, described liquid crystal display 56 can be the serial ports transmission mode with the connected mode of processor 1, the IIC transmission mode, SPI transmission mode etc., in the present embodiment, adopt the parallel port transmission mode, its transmission speed is the fastest, can satisfy the present invention to the requirement of data transmission.
See also shown in Figure 11, it is for the rear view of composite type electric wheelchair tester of the present invention, it comprises a fixed mount 116, a testing power supply input socket 112, a testing power supply accessory power outlet 113, a test macro voltage input socket 114, an expansion interface 115 and an optoelectronic switch interface 117, described fixed mount 116 is in order to be fixed on described tester lower end on the handrail of wheelchair, and the tester can carry out associative operation to testing tool when taking wheelchair; Described testing power supply input socket 112 transfers in order to the power supply signal with described wheelchair primary power 21 in the processor 1 of described tester; Described test macro voltage input socket 114, it is in order to transfer to the tester required voltage in described tester, so that described tester normally moves, in the present invention, described tester power supply is provided by external connection battery, it adopts 24VDC, adopts the 5A lithium battery in the present embodiment, and it is connected by outer connecting line with described test macro voltage input socket 114; Described tester can also use the electric wheelchair power supply as power supply, but can affect the measuring accuracy of electric current and voltage.
Described expansion interface 115 is a USB interface, and it transmits the MCU processor 43 that connects in PC or described expansion module 4 by serial data, and it guarantees that described expansion module can be applied to multiple electrical equipment; Described optoelectronic switch interface 117, it is row's needle interface, it is connected with described photoelectricity switch buffer circuit 31, in order to the optoelectronic switch scanning information is transferred in described tester.
in order to prevent that program from producing mess code being subjected to the external world or internal operation erroneous effects, and prevent from processor is implemented the mistake storage, a present invention also external hardware sees the doorway, see also shown in Figure 12, it is for the watchdog circuit figure of composite type electric wheelchair tester of the present invention, it is provided with a timer circuit, and be connected to the reset terminal of processor 1 connecting circuit, if feeding dog in 1.6 seconds, system carries out system reset, and test No. is from increasing 1, so just can follow original data and continue test, and described watchdog circuit is subsidiary manual set also, to guarantee that test macro can be accurate, the operation of safety.
Large characteristics as composite type electric wheelchair tester of the present invention, it can measure kinematic parameter and the electrical quantity of described electric wheelchair simultaneously, especially speed can affect the Changing Pattern of electric current, electric current rises with speed is linear under normal circumstances, electric current can rise at double in the processes such as upward slope, obstacle detouring simultaneously, whether load capacity, energy consumption and circuit by this change curve reflection wheelchair are in the safety current state, so that line design is reasonable; Acceleration, it directly affects the total kilometres amount, and the size of voltage reflection current electric quantity keeps certain linear relationship with stroke to a certain extent.The real-time testing data of described speed and electric current, voltage and stroke, after described processor 1 is processed, described speed, time curve and voltage, stroke curve are presented on liquid crystal display on described Operation display module, to realize visual to test result, store the operation program of described speed and electric current, voltage and stroke curve in described processor 1.
In addition, described processor 1 is also processed beating information and the velocity information of wheel shaft, and it regularly exports the wheel vibrations with the curve of velocity variations on display operation module 5, store the operation program of described speed and wheel shock curve in described processor 1.
Test this series data mainly in order to design service, select suitable electric component, as: motor, battery etc., circuit reasonable in design, design stability complete vehicle structure etc.In actual production, must carry out safety test to each electric wheelchair during factory inspection, check whether speed parameter is reasonable, whether electric current is stable etc.
The above is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limits, revise, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. composite type electric wheelchair tester, it comprises a power module, in order to provide power supply to described electric wheelchair tester, it is characterized in that, it also comprises:
One processor;
One electrical quantity monitoring module, driving voltage and the electric current of the described electric wheelchair power supply output of its Real Time Monitoring, and real-time voltage and the current signal transfer that gathers carried out calculation process to described processor;
One movement parameter measurement module, it measures revolver and the right stroke of taking turns of described electric wheelchair simultaneously, and metrical information is transferred to carries out calculation process in described processor, in order to realize the detection to electric wheelchair left and right motor speed and electric wheelchair acceleration.
2. composite type electric wheelchair tester according to claim 1, is characterized in that, described electric wheelchair tester also comprises an expansion module, and it is connected with described processor, tests in order to the overall performance parameter to described electric wheelchair.
3. composite type electric wheelchair tester according to claim 1, it is characterized in that, described electric wheelchair tester also comprises a display operation module, its result with electrical quantity, kinematic parameter and overall performance parameter that described processor calculating is processed shows, and by the operator, described electric wheelchair tester is operated.
4. composite type electric wheelchair tester according to claim 1, is characterized in that, described movement parameter measurement module comprises:
One optoelectronic switch, it carries out pulse scanning to the revolver of described electric wheelchair and right wheel, induction vehicle wheel rotation position;
One sensor block, it is arranged on the revolver and right spoke of taking turns of described electric wheelchair, and is relative with described optoelectronic switch scanning end;
One photoelectric isolating circuit, it carries out the photoelectricity isolation processing with the scanning pulse signal that described optoelectronic switch sends, and the communication after processing is to described processor.
5. composite type electric wheelchair tester according to claim 4, is characterized in that, described movement parameter measurement module also comprises:
One mount pad, it is in order to support described optoelectronic switch;
One installs fixture block, and it coordinates with described mount pad, in order to described mount pad is fixed on the left and right support of taking turns side of wheelchair.
6. according to claim 1-5 described composite type electric wheelchair of arbitrary claim testers, is characterized in that, described electric wheelchair tester also comprises:
One fixed mount, it is arranged on described electric wheelchair tester lower end, in order to described electric wheelchair tester is fixed on the handrail of described electric wheelchair;
One expansion interface, it is arranged on the shell of described electric wheelchair tester, and it is a USB interface, and it transmits by serial data and connects computing machine or described expansion module, carries out exchanges data;
One optoelectronic switch interface, it is arranged on described electric wheelchair tester shell, and it is row's needle interface, and it transfers in described electric wheelchair tester in order to the metrical information with described movement parameter measurement module.
7. composite type electric wheelchair tester according to claim 2, it is characterized in that, described expansion module is a ultrasonic distance measuring module, described ultrasonic distance measuring module comprises a ultrasonic sensing stadimeter, it is arranged on the rear end of described electric wheelchair, in order to the fluctuation information of the wheel diameter maximum of testing described electric wheelchair.
8. according to claim 1-5 described composite type electric wheelchair of arbitrary claim testers, is characterized in that, described electrical quantity monitoring module comprises:
One voltage branch circuit is provided with divider resistance on it, carry out stepping during tested voltage signal access and process, to satisfy the high-precision requirement of tester;
One shunt, it shunts tested current signal, to improve the measuring accuracy of tested current signal;
One current amplification circuit, it comprises that a High Precision Low Temperature floats anti-tampering operational amplifier, amplifies in order to described shunt output current is carried out secondary.
9. composite type electric wheelchair tester according to claim 7, is characterized in that, described ultrasonic distance measuring module also comprises:
One adjuster bar, its two ends are connected with end support after described electric wheelchair, and described ultrasonic sensing stadimeter is installed on it;
One MCU processor, it is placed in described ultrasonic sensing stadimeter, and its fluctuation information to measured electric wheelchair wheel is processed, and analyzes the situation of beating of described electric wheelchair wheel;
One serial ports data transmission circuit, the data timing after it processes described MCU processor is transferred in described processor.
10. composite type electric wheelchair tester according to claim 3, is characterized in that, described display operation module comprises:
One liquid crystal display circuit, its output information with described processor transfer to a liquid crystal display and show;
One LED circuit, its output information with described processor transfers on the function LED that is connected with described LED circuit;
One key circuit, its with the operation push-button communication on tester to the described processor.
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| CN201310059071.4A CN103149481B (en) | 2013-01-21 | 2013-02-26 | Comprehensive electrically propelled wheelchair tester |
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| CN201310059071.4A CN103149481B (en) | 2013-01-21 | 2013-02-26 | Comprehensive electrically propelled wheelchair tester |
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| CN103149481B CN103149481B (en) | 2015-05-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966064A (en) * | 2019-04-04 | 2019-07-05 | 北京理工大学 | The wheelchair and control method of fusion brain control and automatic Pilot with investigation device |
| CN111596084A (en) * | 2019-02-21 | 2020-08-28 | 广东省医疗器械质量监督检验所 | Device for monitoring wheel speed change of electric wheelchair through electromagnetic compatibility test |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476429A (en) * | 1994-05-31 | 1995-12-19 | Packer Engineering Inc. | Treadmill for use with a wheelchair |
| US20050080518A1 (en) * | 2003-10-09 | 2005-04-14 | Wakefield Theodore D. | Integral joystick display for a powder driven wheelchair |
| CN102401738A (en) * | 2010-09-07 | 2012-04-04 | 上海理工大学 | Fatigue strength test device for parking brake of wheelchair |
| CN102629115A (en) * | 2012-03-21 | 2012-08-08 | 燕山大学 | Electric wheelchair controller |
-
2013
- 2013-02-26 CN CN201310059071.4A patent/CN103149481B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476429A (en) * | 1994-05-31 | 1995-12-19 | Packer Engineering Inc. | Treadmill for use with a wheelchair |
| US20050080518A1 (en) * | 2003-10-09 | 2005-04-14 | Wakefield Theodore D. | Integral joystick display for a powder driven wheelchair |
| CN102401738A (en) * | 2010-09-07 | 2012-04-04 | 上海理工大学 | Fatigue strength test device for parking brake of wheelchair |
| CN102629115A (en) * | 2012-03-21 | 2012-08-08 | 燕山大学 | Electric wheelchair controller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596084A (en) * | 2019-02-21 | 2020-08-28 | 广东省医疗器械质量监督检验所 | Device for monitoring wheel speed change of electric wheelchair through electromagnetic compatibility test |
| CN109966064A (en) * | 2019-04-04 | 2019-07-05 | 北京理工大学 | The wheelchair and control method of fusion brain control and automatic Pilot with investigation device |
| CN109966064B (en) * | 2019-04-04 | 2021-02-19 | 北京理工大学 | Wheelchair with detection device and integrated with brain control and automatic driving and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103149481B (en) | 2015-05-06 |
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Address after: 213000 sirxiang Road, Wujin District, Changzhou, Jiangsu Province, No. 33 Patentee after: Changzhou China Medical equipment Limited by Share Ltd Address before: No. 1, Xiangyun Road, Wujin Economic Development Zone, Changzhou, Jiangsu Province Patentee before: Changzhou Zhongjin Medical Co., Ltd. |
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