CN107697122A - A kind of electric shopping cart - Google Patents
A kind of electric shopping cart Download PDFInfo
- Publication number
- CN107697122A CN107697122A CN201710928516.6A CN201710928516A CN107697122A CN 107697122 A CN107697122 A CN 107697122A CN 201710928516 A CN201710928516 A CN 201710928516A CN 107697122 A CN107697122 A CN 107697122A
- Authority
- CN
- China
- Prior art keywords
- resistance
- pins
- handle
- shopping cart
- driving wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/002—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by a rectangular shape, involving sidewalls or racks
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F10/00—Furniture or installations specially adapted to particular types of service systems, not otherwise provided for
- A47F10/02—Furniture or installations specially adapted to particular types of service systems, not otherwise provided for for self-service type systems, e.g. supermarkets
- A47F10/04—Furniture or installations specially adapted to particular types of service systems, not otherwise provided for for self-service type systems, e.g. supermarkets for storing or handling self-service hand-carts or baskets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/008—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor having more than two axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0006—Bumpers; Safety devices
- B62B5/0009—Stops for moving parts, e.g. rubber elements to eliminate stop noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0033—Electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0033—Electric motors
- B62B5/0036—Arrangements of motors
- B62B5/0043—One motor drives one wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0026—Propulsion aids
- B62B5/0069—Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The present invention relates to shopping cart technique field, especially a kind of electric shopping cart.Using ultrasonic sensor to being detected in front of shopping cart, when barrier is found, motor can stop the present invention in time, avoid the phenomenon that shopping cart directly bumps against people or shelf；The present invention is using advance of the resistance strain gage being arranged at handle to shopping cart, turning left and turning right is controlled, when people imposes grip equivalent to press switch, when people stops shopping, again equivalent to pressing stop button automatically, consumer greatly improves the comfortableness of shopping cart and intelligent without purposely going to switch by motor；The present invention is detected using pyroelectric infrared sensor circuit to handle, only detect consumer, and after handle foil gauge stress, driving wheel motor can just start to rotate, to mitigate the burden of consumer, in the case of foil gauge failure is avoided without consumer, the phenomenon of shopping cart automatic running.
Description
Technical field
The present invention relates to shopping cart technique field, especially a kind of electric shopping cart.
Background technology
Recently as the continuous development of science and technology and society, people increasingly like the article required for supermarket's purchase,
Such as daily living article, vegetables and fruit etc., sometimes consumer can buy many commodity, at this moment, the purchase inside supermarket
Thing car just turns into the competent assistant of consumer, pushes shopping cart and carries out the great burden for alleviating consumer of doing shopping so that strolls
Supermarket becomes a kind of amusement and recreation activity.Shopping cart inside current supermarket is typically or more by manpower, when shopping compared with
When more heavier, trouble that shopping cart boosts also to compare, and sometimes need escalator to be carried out to different floors
Shopping, is now boosted more to bother, more tired.Although some electronic shopping carts can greatly mitigate the burden of people,
Control get up it is comparatively laborious, some the elderlys use inconvenience；And can not be automatic when shopping cart runs into obstacle
Stopping, causing to bump against on shelf, this immature property of shopping cart result in shopping cart can not large-area applications.Especially exist
When child is put on shopping cart, boost come it is heavier, but also can not be careless, otherwise can cause serious consequence.Therefore,
For existing shopping cart, not only the comfortableness when consumer does shopping is not up to standard, and in the security used there is also
The problem of certain.
The content of the invention
The technical problems to be solved by the invention, it is to be directed to above-mentioned technical deficiency, there is provided a kind of manual mode electricity
Dynamic shopping cart, a kind of manual mode electric shopping cart is simple in construction, occupies little space, and installation cost is relatively low, and maintenance cost is few, energy-conservation
Environmental protection；The present invention uses ultrasonic sensor to being detected in front of shopping cart, when barrier is found, motor
It can in time stop, avoiding shopping cart and directly bump against people or shelf；Present invention employs the resistance-strain at handle
Advance of the piece to shopping cart, turning left and turning right is controlled, equivalent to switch is pressed when people imposes grip, when people stops
When getting off to do shopping, and stop button is pressed equivalent to automatic, consumer is without purposely going, by switch, so to greatly improve
The comfortableness of shopping cart, also greatly improve the intelligent of shopping cart；Present invention employs pyroelectric infrared sensor circuit
To being detected at handle, only when having detected consumer, and after handle foil gauge stress, left driving wheel motor and right drive
Driving wheel motor can just start to rotate, to mitigate the burden of consumer, in the case of avoiding foil gauge failure without consumer,
The phenomenon of shopping cart automatic running.
In order to solve the above technical problems, the technical solution adopted in the present invention is：Including shopping cart car body, left driving wheel,
Right driving wheel, driven pulley, handle brackets, handle, handle left part control circuit, handle right part control circuit, rpyroelectric infrared pass
Sensor circuit, ultrasonic sensor, revolver motor circuit, right wheel motor circuit, single-chip minimum system, power supply；Purchasing
Handle brackets are provided with the top of thing car car body side, one end of handle brackets is bolt-connected on shopping cart car body, separately
One end is fixedly connected with handle；One end of handle is provided with handle left part control circuit, and the other end is provided with the control of handle right part
Circuit；Pyroelectric infrared sensor circuit is installed at the center of handle brackets and the junction of shopping cart vehicle body side；Pacifying
Dress pyroelectric infrared sensor circuit is provided with rectangular slot at relative side top center, and ultrasound is provided with rectangular slot
Wave sensor；Two driven pulleys, the shopping cart in ultrasonic sensor side are installed in the shopping cart vehicle bottom of handle side
Vehicle bottom is separately installed with left driving wheel and right driving wheel；Handle left part control circuit includes first resistor foil gauge, first
Wheatstone bridge circuit, the first amplifying circuit and the first AD7810, the first wheatstone bridge circuit include resistance R4, resistance R5,
Resistance R6, the first amplifying circuit include slide-changing resistor device RV1, resistance R7, resistance R8, resistance R9, resistance R10 and the first LM358；
Resistance R5, resistance R4, resistance R6 and first resistor foil gauge are forward connected into the common port of closed-loop path, resistance R5 and resistance R4
It is connected with the output end of power supply, the common end grounding of resistance R6 and first resistor foil gauge, resistance R4 and resistance R6 common port
It is connected with slide rheostat RV1 one end, the slide rheostat RV1 other end is connected with resistance R8 one end, and resistance R8's is another
One end is connected with the first LM358 positive input, the common port of resistance R5 and first resistor foil gauge and resistance R7 one end
Connection, the resistance R7 other end are connected with the first LM358 reverse input end；First LM358 reverse input end also passes through electricity
Resistance R10 is connected with output end, and the first LM358 positive input is also grounded by resistance R9；First LM358 output end and the
One AD7810 Vin+ pins connection, the first AD7810 SCLK pins connect the P1.0 pins of single-chip minimum system, and DOUT draws
Pin connects the P1.1 pins of single-chip minimum system, and CONVST pins connect the P1.2 pins of single-chip minimum system；Handle right part control
Circuit processed includes second resistance foil gauge, the second wheatstone bridge circuit, the second amplifying circuit and the 2nd AD7810, the second favour this
Special bridge circuit include resistance R11, resistance R12, resistance R13, the second amplifying circuit include slide-changing resistor device RV2, resistance R15,
Resistance R16, resistance R17, resistance R18 and the 2nd LM358；Resistance R12, resistance R11, resistance R13 and second resistance foil gauge are suitable
To closed-loop path is connected into, the output end of resistance R11 and resistance R12 common port and power supply connects, resistance R13 and second resistance
The common end grounding of foil gauge, resistance R11 and resistance R13 common port are connected with slide rheostat RV2 one end, slide variable resistance
The device RV2 other end is connected with resistance R16 one end, the resistance R16 LM358 of the other end the 2nd positive input connection, electricity
Resistance R12 and the common port of second resistance foil gauge are connected with resistance R15 one end, the resistance R15 other end and the 2nd LM358's
Reverse input end connects；2nd LM358 reverse input end is also connected by resistance R18 with output end, the 2nd LM358 forward direction
Input is also grounded by resistance R17；2nd LM358 output end is connected with the 2nd AD7810 Vin+ pins, the 2nd LM358
SCLK pins connect the P1.3 pins of single-chip minimum system, DOUT pins connect the P1.4 pins of single-chip minimum system,
CONVST pins connect the P1.5 pins of single-chip minimum system；Revolver motor circuit includes resistance R2, diode D1, triode
The P0.0 pins of Q1, relay RL1 and left driving wheel motor, wherein single-chip minimum system pass through resistance R2's and triode Q1
Base stage connects；Relay RL1 coil one end and the output end of power supply are connected, and the other end is connected with triode Q1 colelctor electrode,
The inverse parallel diode D1 on relay RL1 coil；Triode Q1 grounded emitter；Relay RL1 contact one end
It is connected with the output end of power supply, the other end is connected with one end of left driving wheel motor, the other end ground connection of left driving wheel motor；It is right
Taking turns motor circuit includes resistance R3, diode D2, triode Q2, relay RL2 and right driving wheel motor, wherein single-chip microcomputer most
The P0.1 pins of mini system are connected by R3 with triode Q2 base stage；Relay RL2 coil one end and the output end of power supply
Connection, the other end is connected with triode Q2 colelctor electrode, the inverse parallel diode D2 on relay RL2 coil；Triode
Q2 grounded emitter；Relay RL2 contact one end and the output end of power supply connect, the other end and the one of right driving wheel motor
End connection, the other end ground connection of right driving wheel motor.
Further optimize the technical program, the TRIG pins of described ultrasonic sensor and single-chip minimum system
P2.6 pins connect, and the ECHO pins of ultrasonic sensor and the P3.2 pins of single-chip minimum system connect；Rpyroelectric infrared
Sensor circuit includes pyroelectric infrared sensor, resistance R14, resistance R19, resistance R20 and triode Q3, and rpyroelectric infrared passes
The output end of the VCC pin of sensor and power supply connects, and the one end of the VCC pin of pyroelectric infrared sensor also with resistance R14 connects
Connect, the P1.7 pins of the resistance R14 other end and triode Q3 colelctor electrode and single-chip minimum system are all connected with；Pyroelectricity is red
The OUT pins of outer sensor are connected with resistance R19 one end, and the resistance R19 other end is connected with triode Q3 base stage；Resistance
R20 one end is connected with triode Q3 base stage, other end ground connection；The GND pin ground connection of pyroelectric infrared sensor.
Further optimize the technical program, described left driving wheel motor and right driving wheel motor pass through conveyer belt or tooth
Wheel is connected with left driving wheel and right driving wheel.
Further optimize the technical program, described power supply uses battery, exportable 12V and 5V DC voltages, power supply
12V voltages, power supply are provided for relay RL1 coil, relay RL2 coil, left driving wheel motor and right driving wheel motor
It is steady that 5V is provided for ultrasonic sensor, single-chip minimum system, the first AD7810, the 2nd AD7810 and pyroelectric infrared sensor
Determine voltage.
Further optimize the technical program, described ultrasonic sensor uses model HC-SR04 sensor, and heat is released
Electric infrared sensor uses model LHI878 sensor.
Compared with prior art, the present invention has advantages below：1st, a kind of manual mode electric shopping cart is simple in construction, takes
Space is small, and installation cost is low, and maintenance cost is few, consumption electricity it is few, energy-conserving and environment-protective, and comfortableness and it is intelligent have greatly
Improve；2nd, the present invention in front of shopping cart using ultrasonic sensor to detecting, and when barrier is found, driving is electric
Chance stops in time, avoids the phenomenon that shopping cart directly bumps against people or shelf；3rd, present invention employs at handle
Advance of the resistance strain gage to shopping cart, turning left and turning right is controlled, equivalent to pressing when people imposes grip
Switch, stop button is pressed when people stops shopping, and equivalent to automatic, consumer is without purposely going to open by motor
Close, so greatly improve the comfortableness of shopping, also greatly improve the intelligent of shopping cart；4th, present invention employs heat
Electric infrared sensor circuit is released to being detected at handle, only when having detected consumer, and after handle foil gauge stress,
Left driving wheel motor and right driving wheel motor can just start to rotate, to mitigate the burden of consumer, avoid foil gauge failure and
In the case of there is no consumer, the phenomenon of shopping cart automatic running.
Brief description of the drawings
Fig. 1 is a kind of structural representation of manual mode electric shopping cart.
Fig. 2 is a kind of front view of manual mode electric shopping cart.
Fig. 3 is a kind of circuit structure diagram of manual mode electric shopping cart.
Fig. 4 is a kind of circuit diagram of manual mode electric shopping cart.
In figure：1st, shopping cart car body；2nd, left driving wheel；3rd, right driving wheel；4th, driven pulley；5th, handle brackets；6th, handle；7、
Handle left part control circuit；701st, first resistor foil gauge；702nd, the first wheatstone bridge circuit；703rd, the first amplifying circuit；
8th, handle right part control circuit；801st, second resistance foil gauge；802nd, the second wheatstone bridge circuit；803rd, the second amplifying circuit
9th, pyroelectric infrared sensor circuit；901st, pyroelectric infrared sensor；10th, ultrasonic sensor；11st, the electronic electromechanics of revolver
Road；1101st, left driving wheel motor；12nd, right wheel motor circuit；1201st, right driving wheel motor；13rd, single-chip minimum system；
14th, power supply.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
Embodiment one：With reference to shown in Fig. 1-4, a kind of manual mode electric shopping cart includes shopping cart car body 1, left drive
Driving wheel 2, right driving wheel 3, driven pulley 4, handle brackets 5, handle 6, handle left part control circuit 7, handle right part control circuit 8,
Pyroelectric infrared sensor circuit 9, ultrasonic sensor 10, revolver motor circuit 11, right wheel motor circuit 12, single-chip microcomputer
Minimum system 13, power supply 14；Handle brackets 5 are provided with the top of the side of shopping cart car body 1, one end of handle brackets 5 passes through
It is bolted on shopping cart car body 1, the other end is fixedly connected with handle 6；One end of handle 6 is provided with handle left part control electricity
Road 7, the other end are provided with handle right part control circuit 8；At the center of the junction of handle brackets 5 and the side of shopping cart car body 1
Pyroelectric infrared sensor circuit 9 is installed；Opened at the relative side top center of installation pyroelectric infrared sensor circuit 9
There is rectangular slot, ultrasonic sensor 10 is installed in rectangular slot；It is provided with the bottom of shopping cart car body 1 of the side of handle 6
Two driven pulleys 4, left driving wheel 2 and right driving are separately installed with the bottom of shopping cart car body 1 of the side of ultrasonic sensor 10
Wheel 3；Handle left part control circuit 7 includes first resistor foil gauge 701, the first wheatstone bridge circuit 702, the first amplifying circuit
703 and the first AD7810, the first wheatstone bridge circuit 702 include resistance R4, resistance R5, resistance R6, the first amplifying circuit 703
Including slide-changing resistor device RV1, resistance R7, resistance R8, resistance R9, resistance R10 and the first LM358；Resistance R5, resistance R4, resistance
R6 and first resistor foil gauge 701 are forward connected into closed-loop path, resistance R5 and resistance R4 common port and the output of power supply 14
The common end grounding of end connection, resistance R6 and first resistor foil gauge 701, resistance R4 and resistance R6 common port are with sliding variable resistance
Device RV1 one end connection, the slide rheostat RV1 other end are connected with resistance R8 one end, the resistance R8 other end and first
The common port of LM358 positive input connection, resistance R5 and first resistor foil gauge 701 is connected with resistance R7 one end, electricity
The resistance R7 other end is connected with the first LM358 reverse input end；First LM358 reverse input end also by resistance R10 with
Output end is connected, and the first LM358 positive input is also grounded by resistance R9；First LM358 output end and first
AD7810 Vin+ pins connection, the first AD7810 SCLK pins connect the P1.0 pins of single-chip minimum system 13, and DOUT draws
Pin connects the P1.1 pins of single-chip minimum system 13, and CONVST pins connect the P1.2 pins of single-chip minimum system 13；Handle is right
Portion's control circuit 8 includes second resistance foil gauge 801, the second wheatstone bridge circuit 802, the second amplifying circuit 803 and second
AD7810, the second wheatstone bridge circuit 802 include resistance R11, resistance R12, resistance R13, and the second amplifying circuit 803 includes sliding
Variohm RV2, resistance R15, resistance R16, resistance R17, resistance R18 and the 2nd LM358；Resistance R12, resistance R11, resistance
R13 and second resistance foil gauge 801 are forward connected into closed-loop path, and resistance R11 and resistance R12 common port is defeated with power supply 14
Go out the common port and cunning of the common end grounding of end connection, resistance R13 and second resistance foil gauge 801, resistance R11 and resistance R13
Dynamic rheostat RV2 one end connection, the slide rheostat RV2 other end are connected with resistance R16 one end, and resistance R16's is another
The 2nd LM358 positive input is held to connect, the common port of resistance R12 and second resistance foil gauge 801 and resistance R15 one end
Connection, the resistance R15 other end are connected with the 2nd LM358 reverse input end；2nd LM358 reverse input end also passes through electricity
Resistance R18 is connected with output end, and the 2nd LM358 positive input is also grounded by resistance R17；2nd LM358 output end with
2nd AD7810 Vin+ pins connection, the 2nd LM358 SCLK pins meet the P1.3 pins of single-chip minimum system 13, DOUT
Pin connects the P1.4 pins of single-chip minimum system 13, and CONVST pins connect the P1.5 pins of single-chip minimum system 13；Revolver
Motor circuit 11 includes resistance R2, diode D1, triode Q1, relay RL1 and left driving wheel motor 1101, wherein monolithic
The P0.0 pins of machine minimum system 13 are connected by resistance R2 with triode Q1 base stage；Relay RL1 coil one end and electricity
The output end connection in source 14, the other end is connected with triode Q1 colelctor electrode, two poles of inverse parallel on relay RL1 coil
Pipe D1；Triode Q1 grounded emitter；Relay RL1 contact one end is connected with the output end of power supply 14, the other end and a left side
One end connection of driving wheel motor 1101, the other end ground connection of left driving wheel motor 1101；Right wheel motor circuit 12 includes electricity
Hinder the P0.1 of R3, diode D2, triode Q2, relay RL2 and right driving wheel motor 1201, wherein single-chip minimum system 13
Pin is connected by R3 with triode Q2 base stage；Relay RL2 coil one end is connected with the output end of power supply 14, the other end
It is connected with triode Q2 colelctor electrode, the inverse parallel diode D2 on relay RL2 coil；Triode Q2 emitter stage connects
Ground；Relay RL2 contact one end is connected with the output end of power supply 14, and one end of the other end and right driving wheel motor 1201 connects
Connect, the other end ground connection of right driving wheel motor 1201；The TRIG pins of ultrasonic sensor 10 and single-chip minimum system 13
P2.6 pins are connected, and the ECHO pins of ultrasonic sensor 10 are connected with the P3.2 pins of single-chip minimum system 13；Pyroelectricity
Infrared sensor circuit 9, which includes pyroelectric infrared sensor 901, resistance R14, resistance R19, resistance R20 and triode Q3, heat, to be released
The VCC pin of electric infrared sensor 901 is connected with the output end of power supply 14, the VCC pin of pyroelectric infrared sensor 901 also with
Resistance R14 one end connection, the P1.7 of the resistance R14 other end and triode Q3 colelctor electrode and single-chip minimum system 13 draw
Pin is all connected with；The OUT pins of pyroelectric infrared sensor 901 are connected with resistance R19 one end, the resistance R19 other end and three
Pole pipe Q3 base stage connection；Resistance R20 one end is connected with triode Q3 base stage, other end ground connection；Rpyroelectric infrared senses
The GND pin ground connection of device 901；Left driving wheel motor 1101 and right driving wheel motor 1201 pass through conveyer belt or gear and left drive
Driving wheel 2 and right driving wheel 3 connect；Power supply 14 uses battery, exportable 12V and 5V DC voltages, and power supply 14 is relay RL1
Coil, relay RL2 coil, left driving wheel motor 1101 and right driving wheel motor 1201 12V voltages are provided, power supply 14 is
Ultrasonic sensor 10, single-chip minimum system 13, the first AD7810, the 2nd AD7810 and pyroelectric infrared sensor 901 carry
For 5V burning voltages；Ultrasonic sensor 10 uses model HC-SR04 sensor, and pyroelectric infrared sensor 901 uses
Model LHI878 sensor.
Operation principle introduction：When shopping cart is needed to use, consumer turns on the power 14 switches, and now power supply 14 is
Relay RL1 coil, relay RL2 coil, left driving wheel motor 1101 and right driving wheel motor 1201 provide 12V electricity
Pressure, power supply 14 is ultrasonic sensor 10, single-chip minimum system 13, the first AD7810, the 2nd AD7810 and rpyroelectric infrared
Sensor 901 provides 5V burning voltages, and power supply 14 uses battery, exportable 12V and 5V DC voltages, when battery out of power
When can also to its charge.
Advancement function：When wishing that shopping cart advances, the handle that consumer is held at handle 6 respectively with right-hand man is left
Portion's control circuit 7 and handle right part control circuit 8, due to being to travel forward, now consumer is suitable to the grip of handle 6, this
When first resistor foil gauge 701 and second resistance foil gauge 801 caused by deformation it is also suitable, even if having certain error, but
It is in certain scope；By the first amplifying circuit 703, the amplification of the second amplifying circuit 803 and the first AD7810,
The conversion of two AD7810 converters, inputs to single-chip minimum system 13, and single-chip minimum system 13 is exported by P0.0 pins
High level turns on triode Q1, and relay RL1 contact change-over makes left driving wheel motor 1101 obtain electric and rotated；It is similarly single
Piece machine minimum system 13 exports high level by P0.1 pins turns on triode Q2, and relay RL2 contact change-over makes right drive
Driving wheel motor 1201 is obtained electric and rotated, under the drive of left driving wheel motor 1101 and right driving wheel motor 1201, shopping cart
Run forward, consumer need to only impose certain grip to handle.
Left-hand rotation function：When wishing that shopping cart turns left, consumer only needs left hand to hold with a firm grip the handle left part at handle 6
Control circuit 7, the right hand hold handle right part control circuit 8, by the left hand power that handle left part control circuit 7 applied of holding with a firm grip is big
The power that handle right part control circuit 8 applied is held in the right hand, now deformation also can be long-range caused by first resistor foil gauge 701
In deformation caused by second resistance foil gauge 801；By the first amplifying circuit 703, the amplification of the second amplifying circuit 803 and
One AD7810, the 2nd AD7810 converters conversion, single-chip minimum system 13 is inputed to, what single-chip minimum system 13 obtained
The difference of two pressure values is more than setting value, and now single-chip minimum system 13 exports low level by P0.0 pins makes triode Q1
Shut-off, relay RL1 contact change-over make the dead electricity of left driving wheel motor 1101 and stopped operating；Similarly single-chip minimum system
13 export high level by P0.1 pins turns on triode Q2, and relay RL2 contact change-over makes right driving wheel motor 1201
Obtain electric and rotate, because left driving wheel motor 1101 does not turn, right driving wheel motor 1201 rotates so that shopping cart starts a left side
Turn；When without when turning again, imposing sizable power and moving on.
Right-hand rotation function：When wishing that shopping cart is turned right, the right hand is only needed to hold with a firm grip handle right part control circuit 8, left hand is held
Firmly right-hand rotation function can be achieved in handle left part control circuit 7.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (1)
- A kind of 1. manual mode electric shopping cart, it is characterised in that：Including shopping cart car body (1), left driving wheel (2), right driving wheel (3), driven pulley (4), handle brackets (5), handle (6), handle left part control circuit (7), handle right part control circuit (8), heat Release electric infrared sensor circuit (9), ultrasonic sensor (10), revolver motor circuit (11), right wheel motor circuit (12), Single-chip minimum system (13), power supply (14)；Handle brackets (5), handle branch are provided with the top of shopping cart car body (1) side One end of frame (5) is bolt-connected on shopping cart car body (1), and the other end is fixedly connected with handle (6)；The one of handle (6) End is provided with handle left part control circuit (7), and the other end is provided with handle right part control circuit (8)；In handle brackets (5) and purchase The center of the junction of thing car car body (1) side is provided with pyroelectric infrared sensor circuit (9)；Passed in installation rpyroelectric infrared Sensor circuit (9) is provided with rectangular slot at relative side top center, and ultrasonic sensor is provided with rectangular slot (10)；Two driven pulleys (4) are installed in shopping cart car body (1) bottom of handle (6) side, in ultrasonic sensor (10) side Shopping cart car body (1) bottom be separately installed with left driving wheel (2) and right driving wheel (3)；Handle left part control circuit (7) includes First resistor foil gauge (701), the first wheatstone bridge circuit (702), the first amplifying circuit (703) and the first AD7810, the One wheatstone bridge circuit (702) includes resistance R4, resistance R5, resistance R6, and the first amplifying circuit (703) includes slide-changing resistor device RV1, resistance R7, resistance R8, resistance R9, resistance R10 and the first LM358；Resistance R5, resistance R4, resistance R6 and first resistor should Become piece (701) and be forward connected into closed-loop path, resistance R5 and resistance R4 common port are connected with the output end of power supply (14), resistance R6 and first resistor foil gauge (701) common end grounding, resistance R4 and resistance R6 common port and the one of slide rheostat RV1 End connection, the slide rheostat RV1 other end are connected with resistance R8 one end, and the resistance R8 other end and the first LM358 are just Connected to input, the common port of resistance R5 and first resistor foil gauge (701) is connected with resistance R7 one end, and resistance R7's is another One end is connected with the first LM358 reverse input end；First LM358 reverse input end is also connected by resistance R10 and output end Connect, the first LM358 positive input is also grounded by resistance R9；First LM358 output end and the first AD7810 Vin+ Pin connects, and the first AD7810 SCLK pins connect the P1.0 pins of single-chip minimum system (13), and DOUT pins connect single-chip microcomputer The P1.1 pins of minimum system (13), CONVST pins connect the P1.2 pins of single-chip minimum system (13)；Handle right part controls Circuit (8) includes second resistance foil gauge (801), the second wheatstone bridge circuit (802), the second amplifying circuit (803) and the Two AD7810, the second wheatstone bridge circuit (802) include resistance R11, resistance R12, resistance R13, the second amplifying circuit (803) Including slide-changing resistor device RV2, resistance R15, resistance R16, resistance R17, resistance R18 and the 2nd LM358；Resistance R12, resistance R11, Resistance R13 and second resistance foil gauge (801) are forward connected into the common port and power supply of closed-loop path, resistance R11 and resistance R12 (14) common end grounding of output end connection, resistance R13 and second resistance foil gauge (801), resistance R11 and resistance R13's Common port is connected with slide rheostat RV2 one end, and the slide rheostat RV2 other end is connected with resistance R16 one end, resistance The common port and electricity of the R16 LM358 of the other end the 2nd positive input connection, resistance R12 and second resistance foil gauge (801) R15 one end connection is hindered, the resistance R15 other end is connected with the 2nd LM358 reverse input end；2nd LM358's is reverse defeated Enter end to be also connected with output end by resistance R18, the 2nd LM358 positive input is also grounded by resistance R17；Second LM358 output end is connected with the 2nd AD7810 Vin+ pins, and the 2nd LM358 SCLK pins connect single-chip minimum system (13) P1.3 pins, DOUT pins connect the P1.4 pins of single-chip minimum system (13), and CONVST pins connect single-chip microcomputer minimum The P1.5 pins of system (13)；Revolver motor circuit (11) include resistance R2, diode D1, triode Q1, relay RL1 and The base stage that left driving wheel motor (1101), wherein the P0.0 pins of single-chip minimum system (13) pass through resistance R2 and triode Q1 Connection；Relay RL1 coil one end is connected with the output end of power supply (14), and the other end is connected with triode Q1 colelctor electrode, The inverse parallel diode D1 on relay RL1 coil；Triode Q1 grounded emitter；Relay RL1 contact one end It is connected with the output end of power supply (14), the other end is connected with the one end of left driving wheel motor (1101), left driving wheel motor (1101) other end ground connection；Right wheel motor circuit (12) include resistance R3, diode D2, triode Q2, relay RL2 and Right driving wheel motor (1201), wherein the P0.1 pins of single-chip minimum system (13) are connected by R3 and triode Q2 base stage Connect；Relay RL2 coil one end is connected with the output end of power supply (14), and the other end is connected with triode Q2 colelctor electrode, Inverse parallel diode D2 on relay RL2 coil；Triode Q2 grounded emitter；Relay RL2 contact one end with The output end connection of power supply (14), the other end are connected with the one end of right driving wheel motor (1201), right driving wheel motor (1201) The other end ground connection；The TRIG pins of ultrasonic sensor (10) are connected with the P2.6 pins of single-chip minimum system (13), ultrasonic sensor (10) ECHO pins are connected with the P3.2 pins of single-chip minimum system (13)；Pyroelectric infrared sensor circuit (9) includes Pyroelectric infrared sensor (901), resistance R14, resistance R19, resistance R20 and triode Q3, pyroelectric infrared sensor (901) VCC pin be connected with the output end of power supply (14), the VCC pin of pyroelectric infrared sensor (901) also with resistance R14 one end Connection, the P1.7 pins of the resistance R14 other end and triode Q3 colelctor electrode and single-chip minimum system (13) are all connected with；Heat The OUT pins for releasing electric infrared sensor (901) are connected with resistance R19 one end, the resistance R19 other end and triode Q3 base Pole connects；Resistance R20 one end is connected with triode Q3 base stage, other end ground connection；Pyroelectric infrared sensor (901) GND pin is grounded；Left driving wheel motor (1101) and right driving wheel motor (1201) pass through conveyer belt or gear and left driving wheel (2) and the right side Driving wheel (3) connects；Ultrasonic sensor in front of shopping cart to detecting, and when finding barrier, motor stops in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928516.6A CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562837.XA CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710928516.6A CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510562837.XA Division CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107697122A true CN107697122A (en) | 2018-02-16 |
Family
ID=56144910
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928516.6A Withdrawn CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
| CN201710928465.7A Withdrawn CN107719447A (en) | 2015-09-07 | 2015-09-07 | The manual mode electric shopping cart of people or shelf can be avoided bumping against |
| CN201510562837.XA Active CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710798081.8A Pending CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710928426.7A Withdrawn CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
| CN201710928507.7A Withdrawn CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928465.7A Withdrawn CN107719447A (en) | 2015-09-07 | 2015-09-07 | The manual mode electric shopping cart of people or shelf can be avoided bumping against |
| CN201510562837.XA Active CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710798081.8A Pending CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710928426.7A Withdrawn CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
| CN201710928507.7A Withdrawn CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN107697122A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697122A (en) * | 2015-09-07 | 2018-02-16 | 蒋红娟 | A kind of electric shopping cart |
| CN106428162A (en) * | 2016-10-27 | 2017-02-22 | 苏州市凯业金属制品有限公司 | Intelligent anti-collision-reminding shopping trolley |
| CN108382426A (en) * | 2018-04-13 | 2018-08-10 | 郭昊 | A kind of intelligent shopping trolley |
| CN108765089A (en) * | 2018-05-31 | 2018-11-06 | 杭州纳戒科技有限公司 | Intelligent shopping trolley and smart shopper system |
| CN112505402B (en) * | 2020-11-10 | 2023-08-29 | 杭州凯达电力建设有限公司自动化运维分公司 | Electric energy monitoring system for solitary old people based on database prediction |
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- 2015-09-07 CN CN201710928516.6A patent/CN107697122A/en not_active Withdrawn
- 2015-09-07 CN CN201710928465.7A patent/CN107719447A/en not_active Withdrawn
- 2015-09-07 CN CN201510562837.XA patent/CN105711633B/en active Active
- 2015-09-07 CN CN201710798081.8A patent/CN107472341A/en active Pending
- 2015-09-07 CN CN201710928426.7A patent/CN107738673A/en not_active Withdrawn
- 2015-09-07 CN CN201710928507.7A patent/CN107738674A/en not_active Withdrawn
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| CN1873566A (en) * | 2005-04-27 | 2006-12-06 | 三洋电机株式会社 | Power assist apparatus and movable body including the same |
| JP2007055480A (en) * | 2005-08-25 | 2007-03-08 | Toshiba Tec Corp | Power assist vehicle |
| CN201203915Y (en) * | 2008-04-29 | 2009-03-04 | 袁承业 | Automatic signaling device for riding bus without obstruction |
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| CN203554761U (en) * | 2013-11-08 | 2014-04-16 | 青岛黄海学院 | Light control circuit adopting heat radiation induction |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107719447A (en) | 2018-02-23 |
| CN107738674A (en) | 2018-02-27 |
| CN105711633A (en) | 2016-06-29 |
| CN105711633B (en) | 2017-11-24 |
| CN107472341A (en) | 2017-12-15 |
| CN107738673A (en) | 2018-02-27 |
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Application publication date: 20180216 |
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