CN107505863A - Electric wheelchair control system with identity information recognition capability - Google Patents
Electric wheelchair control system with identity information recognition capability Download PDFInfo
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- CN107505863A CN107505863A CN201710934543.4A CN201710934543A CN107505863A CN 107505863 A CN107505863 A CN 107505863A CN 201710934543 A CN201710934543 A CN 201710934543A CN 107505863 A CN107505863 A CN 107505863A
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- electric machine
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- machine controller
- magnet brushless
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The present invention relates to a kind of electric wheelchair control system with identity information recognition capability, it includes electric machine controller, the electric machine controller is connected with identity information identification module, and identity information identification module can transmit the identity identification information of acquisition to electric machine controller；Effective identity information is prestored in electric machine controller, if and only if when identity identification information that identity information identification module transmits into electric machine controller matches with effective identity information in electric machine controller, electric machine controller starts electric wheelchair work according to the startup information of input, and according to the operation information of reception electric wheelchair can be controlled to carry out performing corresponding action.The present invention is compact-sized, has identification capability, in the case of outside mechanical braking is not increased, in powering-off state, can effectively realize the braking to permanent-magnet brushless DC electric machine, securely and reliably.
Description
Technical field
The present invention relates to a kind of electric wheelchair control system, especially a kind of Electric Motor Wheel with identity information recognition capability
Chair control system, belong to the technical field of electric wheelchair.
Background technology
Electric wheel-chair vehicle is called electric wheelchair for short again, is such as disabled person, old and weak person, the person of walking with difficulty, limbs
The instrument that the special population of the wounded and medicinal rehabilitation etc is ridden instead of walk.The macrostructure of electric wheel-chair vehicle is known
, specifically include vehicle frame, wheel (a pair of front-wheels and a pair of rear wheels), seat support, the chair back including car body and motor drive mechanism, car body
And handrail, motor drive mechanism include electric walking wheel support, controller and a pair of electric walking wheels, wherein, controller is used to control
The motion state of whole motor drive mechanism, to cause electric wheelchair to meet current motion requirement.At present, electric wheelchair makes in purchase
With rear, the risk that can not be effectively controlled by any use outside user be present；When other people use electric wheelchair, due to right
Situations such as control of electric wheelchair etc. is unfamiliar with, damage can be brought to electric wheelchair, reduction of service life, improves making for user
Use cost.
In addition, electric wheelchair typically uses permanent-magnet brushless DC electric machine, permanent-magnet brushless DC electric machine is simple in construction, is easy to
Safeguard, service life length.Braking for permanent-magnet brushless DC electric machine, on the premise of no external mechanical brake apparatus, one
As by the way of the locked rotor of directional magnetic field, i.e., all the time to rotor rotation opposite direction active force so that rotor is in outer masterpiece
Can be static under or shake by a small margin.
But in the event of a power failure, reverse brake force can not be provided to permanent-magnet brushless DC electric machine.It is limited to structure
Limitation, especially for outer rotor hub motor, it is difficult to increase external mechanical brake gear to brshless DC motor.Therefore, it is right
In navigating on electric wheelchair or other equipment for using permanent-magnet brushless DC electric machine on ramp, under unexpected powering-off state, deposit
It can not brake or risk out of control.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of with identity information recognition capability
Electric wheelchair control system, its is compact-sized, has identification capability, in the case of outside mechanical braking is not increased, disconnected
During electric situation, the braking to permanent-magnet brushless DC electric machine can be effectively realized, securely and reliably.
According to technical scheme provided by the invention, the electric wheelchair control system with identity information recognition capability,
Including electric machine controller, the electric machine controller is connected with identity information identification module, and identity information identification module is by acquisition
Identity identification information can be transmitted to electric machine controller；
Effective identity information is prestored in electric machine controller, and if only if identity information identification module is to motor control
When the identity identification information of transmission matches with effective identity information in electric machine controller in device, electric machine controller is according to input
Start information and start electric wheelchair work, and according to the operation information of reception control electric wheelchair can perform dynamic accordingly
Make.
The identity information identification module includes fingerprint identification module or iris recognition module.
The electric machine controller passes through motor driver and the permanent-magnet brushless DC electric machine for driving electric wheelchair to move
Connection, electric machine controller are also connected and for detecting with the speed feedback module for measuring permanent-magnet brushless DC electric machine rotating speed
Temperature, the connection of the detection protection module of current parameters when electric machine controller works.
The electric machine controller is opened by controller radio receiving transmitting module and handheld terminal wireless connection in electric machine controller
After dynamic electric wheelchair work, electric machine controller carries out required information by controller radio receiving transmitting module and handheld terminal and passed
It is defeated.
The controller radio receiving transmitting module includes bluetooth module, infrared module, gsm module, 3G module, 4G modules, 5G
Module or WIFI module.
The electric machine controller is also connected with for the display of presentation of information and grasped for being transmitted to electric machine controller
Make the manually operated module connection of information.
Also include being used to supply to electric machine controller, motor driver, permanent-magnet brushless DC electric machine and speed feedback module
The motor power of electricity；
When the power supply that permanent-magnet brushless DC electric machine is disconnected between motor power connects, by the three of permanent-magnet brushless DC electric machine
Root phase line short circuit, to change the working condition of permanent-magnet brushless DC electric machine, realize needed for being carried out to permanent-magnet brushless DC electric machine
Braking.
During by three phase line short circuits of brushless, permanently commutating machine, including use passive short circuit mode；
During using passive short circuit mode, three phase lines of permanent-magnet brushless DC electric machine by the contact portion of relay, after
The coil of electrical equipment is connected with the motor power for being powered to permanent-magnet brushless DC electric machine；In motor power to DC permanent-magnetic brushless
During motor normal condition, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine are separate；Disconnect
During the electrical connection of motor power and permanent-magnet brushless DC electric machine, the normally-closed contact closure of relay, by permanent-magnet brushless DC electric machine
Three phase line short circuits.
During by three phase line short circuits of permanent-magnet brushless DC electric machine, including use active short circuit mode；
During using active short circuit mode, in addition to the electric machine controller power supply for being powered to electric machine controller,
When motor power is to permanent-magnet brushless DC electric machine normal power supply, motor power can be to electric machine controller power source charges, in motor electricity
When source disconnects the power supply to permanent-magnet brushless DC electric machine, electric machine controller power supply can cause electric machine controller to keep electriferous state；
After electric machine controller detection motor power is disconnected to the power supply of permanent-magnet brushless DC electric machine, electric machine controller passes through short
Connect three phase line short circuits that circuit causes permanent-magnet brushless DC electric machine.
The short circuit short circuit includes relay.
Advantages of the present invention：Identity information identification module is connected with electric machine controller, is obtained by identity information identification module
Take identity identification information, when identity identification information matches with effective identity information in electric machine controller, could start and
Control electric wheelchair to perform corresponding action, avoid electric wheelchair from illegally or arbitrarily being used, disconnect motor power to permanent magnetism
During the power supply of brshless DC motor, by three phase line short circuits of permanent-magnet brushless DC electric machine, to change permanent-magnet brushless DC electric machine
Working condition, the braking needed for being carried out to permanent-magnet brushless DC electric machine is realized, so as to not increasing outside mechanical braking situation
Under, in powering-off state, the braking to permanent-magnet brushless DC electric machine can be effectively realized, securely and reliably.
Brief description of the drawings
Fig. 1 is the structured flowchart of the present invention.
Fig. 2 is the contact portion schematic diagram that three phase lines of permanent-magnet brushless DC electric machine of the present invention pass through relay.
Description of reference numerals：1- motor powers, 2- identity informations identification module, 3- electric machine controllers, 4- controllers are wireless
Transceiver module, 5- detections protection module, 6- displays, 7- motor drivers, 8- permanent-magnet brushless DC electric machines, 9- velocity feedback moulds
The manually operated module of block, 10-, 11- charge management circuits, 12- controller power sources and 13- short circuit control devices.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1：In order to realize the identification capability of electric wheelchair, the present invention includes electric machine controller 3, the electricity
Machine controller 3 is connected with identity information identification module 2, and identity information identification module 2 can transmit the identity identification information of acquisition
To electric machine controller 3；
Effective identity information is prestored in electric machine controller 3, and if only if identity information identification module 2 is to motor control
When the identity identification information of transmission matches with effective identity information in electric machine controller 3 in device 3 processed, the basis of electric machine controller 3
The startup information of input starts electric wheelchair work, and electric wheelchair can be controlled perform accordingly according to the operation information of reception
Action.
Specifically, electric machine controller 3 is used for the working condition for controlling whole electric wheelchair, the working condition bag of electric wheelchair
Include walking, turn, state, the electric machine controller 3 such as acceleration, deceleration and stopping can use existing conventional form, be specially
Known to those skilled in the art, here is omitted.Identity information identification module 2 is connected with electric machine controller 3, passes through identity
Information identification module 2 can obtain the identity information for the related personnel that will use or operate electric wheelchair.
When it is implemented, prestoring effective identity information in electric machine controller 3, the effectively identity information is specifically
Refer to the identity information allowed using electric wheelchair or the personnel for operating electric wheelchair, can specifically use what the art was commonly used
Effective identity information is preset in electric machine controller 3 by technological means.In electric machine controller 3 after preset effectively identity information,
When using or operating current electric wheelchair, it is necessary to by identity information identification module 2 input identity identification information, when and only
When identity identification information matches with effective identity information, electric controller 3 could start electric wheelchair according to information is started, and
Electric wheelchair is caused to perform corresponding action according to the operation information of reception, otherwise, electric controller 3 causes whole electric wheelchair
In standby or lock-out state, electric wheelchair is avoided to be illegally used or move.The body obtained by identity information identification module 2
Part identification information matches with effective identity information in electric machine controller 3, in particular to identity identification information is believed with effective identity
Cease it is consistent or essentially identical, electric machine controller 3 can using it is existing it is conventional by the way of realize identity identification information and effective identity
The comparison of information and matching, detailed process are that here is omitted known to those skilled in the art.
The identity information identification module 2 includes fingerprint identification module or iris recognition module.In the embodiment of the present invention, lead to
The identity information for crossing fingerprint identification module or iris recognition module to identify using electric wheelchair or operate electric wheelchair, certainly,
Identity information identification module 2 can also use the form needed for other, can specifically carry out selection determination as needed.Work as identity
When information identification module 2 is using different forms, the effective identity information prestored in electric machine controller 3 needs to believe with identity
It is corresponding to cease the identity identification information that identification module 2 identifies, to improve identity identification information and effective identity information comparison match
Efficiency and accuracy.
Further, the electric machine controller 3 by motor driver 7 with for drive electric wheelchair move permanent magnetism without
Brushless motor 8 connects, and electric machine controller 3 also connects with the speed feedback module 9 for measuring the rotating speed of permanent-magnet brushless DC electric machine 8
Connect and connected for detecting temperature, the detection protection module 5 of current parameters when electric machine controller 3 works.
In the embodiment of the present invention, permanent-magnet brushless DC electric machine 8 is used for the motion for driving electric wheelchair, permanent magnet brushless dc
Machine 8 is driven by motor driver 7, and electric machine controller 3 controls the work of permanent-magnet brushless DC electric machine 8 by motor driver 7
State, the concrete form of motor driver 7 are adapted to permanent-magnet brushless DC electric machine 8, motor driver 7 and permanent magnet brushless dc
The specific fit form of machine 8 is that here is omitted known to those skilled in the art.
When permanent-magnet brushless DC electric machine 8 works, permanent-magnet brushless DC electric machine 8 can be obtained by velocity feedback module 9
Rotating speed, i.e., the velocity feedback by velocity feedback module 9 to permanent-magnet brushless DC electric machine 8, it can realize to permanent magnet brushless dc
The closed-loop control of machine 8, it is ensured that permanent-magnet brushless DC electric machine 8 is operated in required state.Detection protection module 5 is electronic for detecting
Temperature value, current value and corresponding magnitude of voltage when wheelchair controller 1 works etc., detection protection module 5 can use temperature
The forms such as sensor, current sensor, detection protection module 5 are connected with motor driver 7, and electric machine controller 3 is protected according to detection
The result that shield module 5 detects is controlled, situations such as overheat and excessively stream when avoiding the electric wheelchair controller 1 from working
Occur, extend the service life of electric wheelchair controller 1.
The electric machine controller 3 is by controller radio receiving transmitting module 4 and handheld terminal wireless connection, in electric machine controller
After 3 start electric wheelchair work, electric machine controller 3 carries out required letter by controller radio receiving transmitting module 4 and handheld terminal
Breath transmission.
When it is implemented, electric machine controller 3 can be wireless by controller radio receiving transmitting module 4 and the handheld terminal of outside
Connection, handheld terminal can use existing conventional intelligent terminal, such as smart mobile phone or Intelligent flat, as long as can realize and electricity
The form of the wireless connection of machine controller 3.When it is implemented, the controller radio receiving transmitting module 4 includes bluetooth module, red
Outer mold piece, gsm module, 3G module, 4G modules, 5G modules or WIFI module, when controller radio receiving transmitting module 4 is using different
During form, form realization corresponding to handheld terminal use is adapted to wireless connection with electric machine controller 3.
In the embodiment of the present invention, electric machine controller 3 is with that after handheld terminal wireless connection, can utilize handheld terminal realization pair
The switch control of electric wheelchair, can also utilize the wireless telecommunications between electric machine controller 3 to realize the motion control of electric wheelchair
System, can be remotely controlled wheelchair in bed hence for some handicapped people and come, and be easy to use wheelchair.In addition, for trick
The user of inconvenience, particularly hand is inoperable, and traveling can by guardian's mobile phone remote, mitigates guardian's burden.
Further, handheld terminal is with that after the wireless connection of electric machine controller 3, can adjust the control parameter of electric wheelchair, the control
Parameter processed is the parameter of control electric wheelchair motion state, so as to meet different users, meets the needs of customization is personalized.
In the specific implementation, electric machine controller 3 can also by the real-time rotating speed of permanent-magnet brushless DC electric machine 8, work when
Electric current or temperature value are transmitted to handheld terminal by controller radio receiving transmitting module 4, so that handheld terminal makes to electric wheelchair
Effective monitoring is carried out with process, judges whether electric wheelchair is in normal condition all the time, avoids electric wheelchair in abnormal cases
The risk brought during use.
The electric machine controller 3 is also connected and for being transmitted to electric machine controller 3 with for the display 6 of presentation of information
The manually operated module 10 of operation information connects.
In the embodiment of the present invention, electric machine controller 3 shows information during electric wheelchair work using display 6, such as selects
Information of electric wheelchair mode of operation etc. is selected, the particular content that display 6 is shown can be selected as needed, herein no longer
Repeat.Manually operated module 10 is used to transmit manual information, the manual information that manually operated module 10 inputs to electric machine controller 3
Such as start information, brake information, manually operated module 10 can use the structure type that the art is commonly used, such as handle or
Known to button etc., specially those skilled in the art, here is omitted.
When it is implemented, after electric machine controller 1 and handheld terminal wireless connection, electric wheelchair user can be with profit
Remote call-in is realized to handheld terminal with manually operated module 10 and electric machine controller 1, realizes the nothing between handheld terminal
The abilities such as line call, so as to which when the user of electric wheelchair wants help, the wireless connection to handheld terminal can be passed through in time
Or wireless communication, effectively realize help in time.When electric machine controller 1 is with handheld terminal wireless communication, controller wireless receiving and dispatching
Module 4 is needed using forms such as SIM card or GPRS modules.In addition, it can also be connected on electric machine controller 1 with locating module, energy
Location information is sent to handheld terminal in real time by controller radio receiving transmitting module 4, to use the monitoring of handheld terminal
People etc. understands the information such as the position of electric wheelchair in time.
Further, in addition to it is used for electric machine controller 3, motor driver 7, permanent-magnet brushless DC electric machine 8 and turns
The motor power 1 that fast feedback module 9 is powered；
When permanent-magnet brushless DC electric machine 8 disconnects the power supply connection between motor power 1, by permanent-magnet brushless DC electric machine 8
Three phase line short circuits, to change the working condition of permanent-magnet brushless DC electric machine 8, realize and permanent-magnet brushless DC electric machine 8 carried out
Required braking.
Specifically, permanent-magnet brushless DC electric machine 8 has three phase lines, respectively A phase lines, B phase lines and C phase lines, permanent magnetism
Brshless DC motor 8 is connected by three phase lines with motor power 1, and motor power 1 is provided needed for permanent-magnet brushless DC electric machine 8
Operating voltage, now, permanent-magnet brushless DC electric machine 8 are operated in electric motor state.When disconnection motor power 1 is to DC permanent-magnetic brushless
During the power supply of motor 8, in the case where not increasing outside mechanical braking, in order to realize the system to permanent-magnet brushless DC electric machine 8
It is dynamic, by three phase line short circuits of permanent-magnet brushless DC electric machine 8, after by the three of permanent-magnet brushless DC electric machine 8 piece phase line short circuit, forever
Magnetic brshless DC motor 8 works in Generator Status, and turning for the permanent-magnet brushless DC electric machine 8 is put on when there is applied external force
When on son, it can be seen from the characteristics of generator, kinetic energy caused by outside application active force is converted into electric energy, so as in powering-off state
Under, constant brake force is provided for permanent-magnet brushless DC electric machine 8, realizes the effective brake to permanent-magnet brushless DC electric machine 8.
When it is implemented, during by three phase line short circuits of brushless, permanently commutating machine 8, including use passive short circuit mode；
During using passive short circuit mode, three phase lines of permanent-magnet brushless DC electric machine 8 by the contact portion of relay, after
The coil of electrical equipment is connected with the motor power 1 for being powered to permanent-magnet brushless DC electric machine 8；In motor power 1 to brushless, permanently
During 8 normal condition of direct current generator, the normally-closed contact of relay disconnects, and three phase lines of permanent-magnet brushless DC electric machine 8 are separate；
When disconnecting the electrical connection of motor power 1 and permanent-magnet brushless DC electric machine 8, the normally-closed contact closure of relay, by brushless, permanently
Three phase line short circuits of direct current generator 8.
In the embodiment of the present invention, specifically referred to using passive short circuit mode when motor power 1 is disconnected to DC permanent-magnetic brushless
During the power supply of motor 8, control circuit of permanent-magnet brushless DC electric machine 8 and outside etc. is in power failure state.Motor power 1 is disconnected
Open the power supply to permanent-magnet brushless DC electric machine 8 include motor power 1 electric energy exhaust when lose to DC permanent-magnetic brushless
The state of the power supply capacity of motor 8 or it is active and passive in the case of lose the shape of power supply capacity to permanent-magnet brushless DC electric machine 8
State, concrete condition will not enumerate herein.
After the power supply that motor power 1 disconnects to permanent-magnet brushless DC electric machine 8, because external control circuit etc. is in losing
Electricity condition, in order to realize three phase line short circuits of permanent-magnet brushless DC electric machine 8, the present invention using relay contact with forever
Three phase lines connection of magnetic brshless DC motor 8, as shown in Figure 2.The coil of relay is connected with motor power 1, relay utensil
Have normally-closed contact K1 and normally-closed contact K2, A phase line, C phase lines respectively by normally-closed contact K1, normally-closed contact K2 respectively with B phases
Line connects, and when motor power 1 is normally powered to permanent-magnet brushless DC electric machine 8, the coil of relay is in electriferous state, this
When, normally-closed contact K1 and normally-closed contact K2 are in open mode, three phase line independences of permanent-magnet brushless DC electric machine 8, no
The normal work of permanent-magnet brushless DC electric machine 8 can be influenceed.After power supply of the motor power 1 to permanent-magnet brushless DC electric machine 8 is disconnected,
The coil losing electricity of relay, normally-closed contact K1 and normally-closed contact K2 closures in open mode, can be by DC permanent-magnetic brushless
Three phase line short circuits of motor 8, directly change the working condition of permanent-magnet brushless DC electric machine 8, utilize permanent-magnet brushless DC electric machine 8
The effective brake to permanent-magnet brushless DC electric machine 8 is realized in the change of working condition.
When motor power 1 restarts the power supply to permanent-magnet brushless DC electric machine 8, the normally-closed contact of relay disconnects,
The normal work of permanent-magnet brushless DC electric machine 8 is not interfered with.Certainly, in the specific implementation, the nothing of other forms can also be used
Source short circuit mode, concrete form can be selected as needed, as long as motor power can be lost in permanent-magnet brushless DC electric machine 8
After 1 power supply, the normal work of permanent-magnet brushless DC electric machine 8 is not influenceed three phase line short circuits of permanent-magnet brushless DC electric machine 8 and
Work, explanation is no longer specifically enumerated herein.When motor power 1 keeps the power supply to permanent-magnet brushless DC electric machine 8, control is forever
The technological means that the electric machine controller 3 of the working condition of magnetic brshless DC motor 8 can use the art to commonly use is realized to forever
Working condition (working condition includes traveling, stopping etc.) control of magnetic brshless DC motor 8, electric machine controller 3 is to brushless, permanently
It is that here is omitted known to those skilled in the art that direct current generator 8, which is operated the process that state controls,.
When specifically, by three phase line short circuits of permanent-magnet brushless DC electric machine 8, including use active short circuit mode；
During using active short circuit mode, in addition to the electric machine controller power supply 12 for being powered to electric machine controller 3,
When motor power 1 is to 8 normal power supply of permanent-magnet brushless DC electric machine, motor power 1 pair of electric machine controller power supply 12 of energy charges,
When motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electric machine controller power supply 12 can cause electric machine controller to keep
Electriferous state；
After electric machine controller 3 detects the power supply that motor power disconnects 1 pair of permanent-magnet brushless DC electric machine 8, electric machine controller 3 is logical
Cross three phase line short circuits that short-circuit causes permanent-magnet brushless DC electric machine 8.
As shown in the above description, when motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, generally,
Electric machine controller 3 for controlling the working condition of permanent-magnet brushless DC electric machine 8 is also at power failure state, i.e., at electric machine controller 3
In without electric stop working state, the working condition of permanent-magnet brushless DC electric machine 8 can not be controlled.Disconnected in motor power 1
During to the power supply state of permanent-magnet brushless DC electric machine 8, in order to avoid electric machine controller 3 is also stopped shape in power-off simultaneously
State, in the embodiment of the present invention, the power supply to electric machine controller 3 is realized using electric machine controller power supply 12.Electric machine controller power supply
12 can use existing conventional chargeable lithium cell, can be to electricity when motor power 1 is powered to permanent-magnet brushless DC electric machine 8
Machine controller power supply 12 charges, and when motor power 1 is disconnected, and permanent-magnet brushless DC electric machine 8 is powered, utilizes electric machine controller electricity
Source 12 causes electric machine controller 3 to keep electriferous state.
When make it that electric machine controller 3 keeps electriferous state using electric machine controller power supply 12, permanent-magnet brushless DC electric machine 8
Off-position is still in, but during the holding electriferous state of electric machine controller 3, electric machine controller 3 can detect the power supply of motor power 1
State.After electric machine controller 3 determines that motor power 1 disconnects the power supply to permanent-magnet brushless DC electric machine 8, electric machine controller 3 can
To pass through three phase line short circuits of short-circuit permanent-magnet brushless DC electric machine 8.Short-circuit can still use above-mentioned
Relay form, simply the coil electriferous state of relay controlled by electric machine controller 3；Certainly, short-circuit can also use
Other forms of implementation, it is as long as being realized under the control of electric machine controller 3 by the short circuit of 8 three phase lines of permanent-magnet brushless DC electric machine
Can, specific implementation form can be selected as needed, will not enumerate herein.
Identity information identification module 2 of the present invention is connected with electric machine controller 3, and body is obtained by identity information identification module 2
Part identification information, when identity identification information matches with effective identity information in electric machine controller 3, could start and control
Electric wheelchair performs corresponding action, avoids electric wheelchair from illegally or arbitrarily being used, and disconnects motor power 1 to brushless, permanently
During the power supply of direct current generator 8, by three phase line short circuits of permanent-magnet brushless DC electric machine 8, to change permanent-magnet brushless DC electric machine 8
Working condition, realize and required braking is carried out to permanent-magnet brushless DC electric machine 8, so as to not increase outside mechanical braking situation
Under, in powering-off state, the braking to permanent-magnet brushless DC electric machine can be effectively realized, securely and reliably.
Claims (10)
1. a kind of electric wheelchair control system with identity information recognition capability, including electric machine controller (3), it is characterized in that：
The electric machine controller (3) is connected with identity information identification module (2), and identity information identification module (2) knows the identity of acquisition
Other information can be transmitted to electric machine controller (3)；
Effective identity information is prestored in the electric machine controller (3), and if only if identity information identification module (2) is to motor control
When the identity identification information of transmission matches with effective identity information in electric machine controller (3) in device (3) processed, electric machine controller
(3) electric wheelchair work is started according to the startup information of input, and according to the operation information of reception electric wheelchair can be controlled to carry out
Perform corresponding action.
2. the electric wheelchair control system according to claim 1 with identity information recognition capability, it is characterized in that：It is described
Identity information identification module (2) includes fingerprint identification module or iris recognition module.
3. the electric wheelchair control system according to claim 1 with identity information recognition capability, it is characterized in that：It is described
Electric machine controller (3) is connected by motor driver (7) and the permanent-magnet brushless DC electric machine (8) for driving electric wheelchair to move
Connect, electric machine controller (3) also with for measure the speed feedback module (9) of permanent-magnet brushless DC electric machine (8) rotating speed be connected and
Temperature, the connection of the detection protection module (5) of current parameters during for detecting electric machine controller (3) work.
4. the electric wheelchair control system with identity information recognition capability according to claim 1 or 2 or 3, its feature
It is：The electric machine controller (3) is by controller radio receiving transmitting module (4) and handheld terminal wireless connection, in electric machine controller
(3) after starting electric wheelchair work, electric machine controller (3) carries out institute by controller radio receiving transmitting module (4) and handheld terminal
The information transfer needed.
5. the electric wheelchair control system according to claim 4 with identity information recognition capability, it is characterized in that：It is described
Controller radio receiving transmitting module (4) includes bluetooth module, infrared module, gsm module, 3G module, 4G modules, 5G modules or WIFI
Module.
6. the electric wheelchair control system with identity information recognition capability according to claim 1 or 2 or 3, its feature
It is：The electric machine controller (3) is also connected with the display (6) for presentation of information and for being passed to electric machine controller (3)
Manually operated module (10) connection of defeated operation information.
7. the electric wheelchair control system according to claim 3 with identity information recognition capability, it is characterized in that：Also wrap
Include for being supplied to electric machine controller (3), motor driver (7), permanent-magnet brushless DC electric machine (8) and speed feedback module (9)
The motor power (1) of electricity；
When permanent-magnet brushless DC electric machine (8) disconnects and is connected with the power supply between motor power (1), by permanent-magnet brushless DC electric machine
(8) three phase line short circuits, to change the working condition of permanent-magnet brushless DC electric machine (8), are realized to permanent-magnet brushless DC electric machine
(8) braking needed for carrying out.
8. the electric wheelchair control system according to claim 7 with identity information recognition capability, it is characterized in that：Will forever
During three phase line short circuits of magnetic is brushless commutating machine (8), including use passive short circuit mode；
During using passive short circuit mode, three phase lines of permanent-magnet brushless DC electric machine (8) pass through the contact portion of relay, relay
The coil of device is connected with the motor power (1) for being powered to permanent-magnet brushless DC electric machine (8)；In motor power (1) to permanent magnetism
During brshless DC motor (8) normal condition, the normally-closed contact of relay disconnects, three phase lines of permanent-magnet brushless DC electric machine (8)
Independently of each other；When disconnecting the electrical connection of motor power (1) and permanent-magnet brushless DC electric machine (8), the normally-closed contact of relay closes
Close, by three phase line short circuits of permanent-magnet brushless DC electric machine (8).
9. the electric wheelchair control system according to claim 7 with identity information recognition capability, it is characterized in that：Will forever
During three phase line short circuits of magnetic brshless DC motor (8), including use active short circuit mode；
During using active short circuit mode, in addition to the electric machine controller power supply (12) for being powered to electric machine controller (3),
When motor power (1) is to permanent-magnet brushless DC electric machine (8) normal power supply, motor power energy (1) is to electric machine controller power supply
(12) charge, when motor power (1) disconnects the power supply to permanent-magnet brushless DC electric machine (8), electric machine controller power supply (12) energy
So that electric machine controller keeps electriferous state；
After electric machine controller (3) detection motor power disconnects the power supply of (1) to permanent-magnet brushless DC electric machine (8), electric machine controller
(3) three phase line short circuits of short-circuit permanent-magnet brushless DC electric machine (8) are passed through.
10. the electric wheelchair control system according to claim 9 with identity information recognition capability, it is characterized in that：Institute
Stating short circuit short circuit includes relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710934543.4A CN107505863A (en) | 2017-10-10 | 2017-10-10 | Electric wheelchair control system with identity information recognition capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710934543.4A CN107505863A (en) | 2017-10-10 | 2017-10-10 | Electric wheelchair control system with identity information recognition capability |
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| CN1344536A (en) * | 2001-10-26 | 2002-04-17 | 胡苏甦 | Safe wheelchair |
| CN101273939A (en) * | 2007-03-30 | 2008-10-01 | 上海市闵行第二中学 | Device instead of walk for invalids |
| KR101315816B1 (en) * | 2013-06-05 | 2013-10-08 | (주)영진엘리베이터 | Elevator priority boarding system for disabled people |
| CN106124872A (en) * | 2016-08-31 | 2016-11-16 | 南京康尼电子科技有限公司 | A kind of open phases of three-phase power source, detection of power loss system and braking method |
| CN206285203U (en) * | 2016-08-31 | 2017-06-30 | 苏州诺乐智能科技有限公司 | Can remote control electric wheelchair control system |
| CN106943250A (en) * | 2017-04-21 | 2017-07-14 | 常熟市平方轮椅有限公司 | A kind of electric wheel-chair vehicle of unlocked by fingerprint |
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- 2017-10-10 CN CN201710934543.4A patent/CN107505863A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1344536A (en) * | 2001-10-26 | 2002-04-17 | 胡苏甦 | Safe wheelchair |
| CN101273939A (en) * | 2007-03-30 | 2008-10-01 | 上海市闵行第二中学 | Device instead of walk for invalids |
| KR101315816B1 (en) * | 2013-06-05 | 2013-10-08 | (주)영진엘리베이터 | Elevator priority boarding system for disabled people |
| CN106124872A (en) * | 2016-08-31 | 2016-11-16 | 南京康尼电子科技有限公司 | A kind of open phases of three-phase power source, detection of power loss system and braking method |
| CN206285203U (en) * | 2016-08-31 | 2017-06-30 | 苏州诺乐智能科技有限公司 | Can remote control electric wheelchair control system |
| CN106943250A (en) * | 2017-04-21 | 2017-07-14 | 常熟市平方轮椅有限公司 | A kind of electric wheel-chair vehicle of unlocked by fingerprint |
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Application publication date: 20171222 |
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