CN105711633A - Hand-controlled type electric shopping cart - Google Patents
Hand-controlled type electric shopping cart Download PDFInfo
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- CN105711633A CN105711633A CN201510562837.XA CN201510562837A CN105711633A CN 105711633 A CN105711633 A CN 105711633A CN 201510562837 A CN201510562837 A CN 201510562837A CN 105711633 A CN105711633 A CN 105711633A
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- driving wheel
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- 230000004888 barrier function Effects 0.000 abstract description 3
- 239000011888 foil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
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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
- B62B3/008—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
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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
- 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
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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
- 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 invention relates to the technical field of shopping carts, in particular to a hand-controlled type electric shopping cart. The hand-controlled type electric shopping cart uses an ultrasonic transducer for detecting the front of the shopping cart; wheel driving motors can stop timely when a barrier is found, so that the phenomenon of direct impact of the shopping cart on people or a goods shelf is prevented; resistance strain gauges mounted in positions at a handle are used for controlling forward movement, as well as left and right turning of the shopping cart; when a consumer applies gripping force, a switch is pressed equivalently; when the consumer stops for shopping, a stop button is automatically pressed equivalently, and the consumer need not deliberately press a switch of the drive motor, therefore, the comfort property and the intelligence property of the shopping cart are greatly improved; the hand-controlled type electric shopping cart uses a pyroelectric infrared sensor circuit for detecting the handle, and only after the consumer is detected and the strain gauges of the handle are stressed, can the wheel driving motors begin to rotate, so that the burden on the consumer is reduced, and the phenomenon of automatic running of the shopping cart under the condition of the fault to the strain gauges without the consumer is prevented.
Description
Technical field
The present invention relates to shopping cart technique field, especially a kind of manual mode electric shopping cart.
Background technology
Development recently as science and technology and society, people increasingly like supermarket to buy required article, such as daily living article, vegetable and fruit etc., sometimes consumer can buy many commodity, at this moment, shopping cart inside supermarket just becomes the competent assistant of consumer, pushes shopping cart and carries out doing shopping and alleviate the burden of consumer greatly so that strolls supermarket and becomes a kind of amusement and recreation activity.The current shopping cart inside supermarket generally or more by manpower, when do shopping more heavier time, shopping cart boosts the trouble also compared, and sometimes needs escalator to do shopping to difference floors, now boosts and more bothers, more tired.Although some electronic shopping cart can alleviate the burden of people greatly, but control is got up comparatively laborious, and some old peoples use inconvenience；And can not stopping automatically when shopping cart runs into obstacle time, cause bumping against on shelf, this immature property of shopping cart result in shopping cart cannot large-area applications.Particularly in, when child put by shopping cart, boosting 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 there is also certain problem in the safety used.
Summary of the invention
The technical problem to be solved, is the technical deficiency for above-mentioned existence, it is provided that a kind of manual mode electric shopping cart, and a kind of manual mode electric shopping cart simple in construction takes up room little, and installation cost is relatively low, and maintenance cost is few, energy-conserving and environment-protective；The present invention adopts ultrasonic sensor that the front of shopping cart is detected, and in time finding barrier, drive motor can stop in time, it is to avoid shopping cart directly bumps against people or shelf；Present invention employs the resistance strain gage being arranged on handle place to the advance of shopping cart, turning left and turning right is controlled, be equivalent to press switch when people imposes grip time, when people stops shopping, be equivalent to again automatically press stop button, consumer is without purposely going by switch, so greatly improve the comfortableness of shopping cart, also greatly improve the intelligent of shopping cart；Present invention employs pyroelectric infrared sensor circuit handle place is detected, only when consumer having been detected, and after handle foil gauge stress, left driving wheel motor and right driving wheel motor just can start to rotate, alleviate the burden of consumer, when avoiding foil gauge fault without consumer, the phenomenon that shopping cart runs automatically.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: include 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, pyroelectric infrared sensor circuit, ultrasonic sensor, revolver motor circuit, right wheel motor circuit, single-chip minimum system, power supply；The top of shopping cart car body side is provided with handle brackets, and one end of handle brackets is bolt-connected on shopping cart car body, and the other end is fixing with handle to be connected；One end of handle is provided with handle left part control circuit, and the other end is provided with handle right part control circuit；At the center of handle brackets and the junction of shopping cart vehicle body side, pyroelectric infrared sensor circuit is installed；Have rectangular slot in the side top center installing pyroelectric infrared sensor circuit relative, ultrasonic sensor is installed in rectangular slot；Shopping cart vehicle bottom in handle side is provided with two driven pulleys, and the shopping cart vehicle bottom in ultrasonic sensor side is separately installed with left driving wheel and right driving wheel；Handle left part control circuit includes the first resistance strain gage, the first wheatstone bridge circuit, the first amplifying circuit and an AD7810, first wheatstone bridge circuit includes resistance R4, resistance R5, resistance R6, and the first amplifying circuit includes slide-changing resistor device RV1, resistance R7, resistance R8, resistance R9, resistance R10 and the one LM358；Resistance R5, resistance R4, resistance R6 and the first resistance strain gage are forward connected into closed-loop path, the common port of resistance R5 and resistance R4 is connected with the outfan of power supply, the common end grounding of resistance R6 and the first resistance strain gage, the common port of resistance R4 and resistance R6 is connected with one end of slide rheostat RV1, the other end of slide rheostat RV1 is connected with one end of resistance R8, the other end of resistance R8 and the positive input of a LM358 connect, the common port of resistance R5 and the first resistance strain gage is connected with one end of resistance R7, the other end of resistance R7 and the reverse input end of a LM358 connect；The reverse input end of the oneth LM358 is connected with outfan also by resistance R10, and the positive input of a LM358 is also by resistance R9 ground connection；The outfan of the oneth LM358 and the Vin+ pin of an AD7810 connect, the SCLK pin of the oneth AD7810 connects the P1.0 pin of single-chip minimum system, DOUT pin connects the P1.1 pin of single-chip minimum system, and CONVST pin connects the P1.2 pin of single-chip minimum system；Handle right part control circuit includes the second resistance strain gage, the second wheatstone bridge circuit, the second amplifying circuit and the 2nd AD7810, second wheatstone bridge circuit includes resistance R11, resistance R12, resistance R13, and the second amplifying circuit includes slide-changing resistor device RV2, resistance R15, resistance R16, resistance R17, resistance R18 and the two LM358；Resistance R12, resistance R11, resistance R13 and the second resistance strain gage are forward connected into closed-loop path, the common port of resistance R11 and resistance R12 is connected with the outfan of power supply, the common end grounding of resistance R13 and the second resistance strain gage, the common port of resistance R11 and resistance R13 is connected with one end of slide rheostat RV2, the other end of slide rheostat RV2 is connected with one end of resistance R16, the positive input of the other end the 2nd LM358 of resistance R16 connects, the common port of resistance R12 and the second resistance strain gage is connected with one end of resistance R15, the other end of resistance R15 and the reverse input end of the 2nd LM358 connect；The reverse input end of the 2nd LM358 is connected with outfan also by resistance R18, and the positive input of the 2nd LM358 is also by resistance R17 ground connection；The outfan of the 2nd LM358 and the Vin+ pin of the 2nd AD7810 connect, the SCLK pin of the 2nd LM358 connects the P1.3 pin of single-chip minimum system, DOUT pin connects the P1.4 pin of single-chip minimum system, and CONVST pin connects the P1.5 pin of single-chip minimum system；Revolver motor circuit includes resistance R2, diode D1, audion Q1, relay R L1 and left driving wheel motor, and wherein the P0.0 pin of single-chip minimum system is connected by the base stage of resistance R2 and audion Q1；Coil one end of relay R L1 is connected with the outfan of power supply, the other end is connected with the colelctor electrode of audion Q1, inverse parallel diode D1 on the coil of relay R L1；The grounded emitter of audion Q1；One end, contact of relay R L1 is connected with the outfan of power supply, and the other end is connected with one end of left driving wheel motor, the other end ground connection of left driving wheel motor；Right wheel motor circuit includes resistance R3, diode D2, audion Q2, relay R L2 and right driving wheel motor, and wherein the P0.1 pin of single-chip minimum system is connected by the base stage of R3 and audion Q2；Coil one end of relay R L2 is connected with the outfan of power supply, the other end is connected with the colelctor electrode of audion Q2, inverse parallel diode D2 on the coil of relay R L2；The grounded emitter of audion Q2；One end, contact of relay R L2 is connected with the outfan of power supply, and the other end is connected with one end of right driving wheel motor, the other end ground connection of right driving wheel motor.
Optimizing the technical program further, the TRIG pin of described ultrasonic sensor is connected with the P2.6 pin of single-chip minimum system, and the ECHO pin of ultrasonic sensor is connected with the P3.2 pin of single-chip minimum system；Pyroelectric infrared sensor circuit includes pyroelectric infrared sensor, resistance R14, resistance R19, resistance R20 and audion Q3, the VCC pin of pyroelectric infrared sensor is connected with the outfan of power supply, the VCC pin of pyroelectric infrared sensor is also connected with one end of resistance R14, and the other end of resistance R14 is all connected with the colelctor electrode of audion Q3 and the P1.7 pin of single-chip minimum system；The OUT pin of pyroelectric infrared sensor is connected with one end of resistance R19, and the other end of resistance R19 is connected with the base stage of audion Q3；One end of resistance R20 is connected with the base stage of audion Q3, other end ground connection；The GND pin ground connection of pyroelectric infrared sensor.
Optimize the technical program, described left driving wheel motor and right driving wheel motor further to be connected with left driving wheel and right driving wheel by conveyer belt or gear.
Optimize the technical program further, described power supply adopts accumulator, exportable 12V and 5V DC voltage, coil that power supply is relay R L1, the coil of relay R L2, left driving wheel motor and right driving wheel motor provide 12V voltage, and power supply is ultrasonic sensor, single-chip minimum system, an AD7810, the 2nd AD7810 and pyroelectric infrared sensor provide 5V burning voltage.
Optimizing the technical program further, described ultrasonic sensor adopts model to be the sensor of HC-SR04, and pyroelectric infrared sensor adopts model to be the sensor of LHI878.
Compared with prior art, the invention have the advantages that 1, a kind of manual mode electric shopping cart simple in construction, take up room little, installation cost is low, and maintenance cost is few, consumes electricity few, energy-conserving and environment-protective, and comfortableness and intelligent have great raising；2, the present invention adopts ultrasonic sensor that the front of shopping cart is detected, and in time finding barrier, drive motor can stop in time, it is to avoid shopping cart directly bumps against the phenomenon of people or shelf；3, present invention employs the resistance strain gage being arranged on handle place to the advance of shopping cart, turning left and turning right is controlled, be equivalent to press switch when people imposes grip time, when people stops shopping, be equivalent to again automatically press stop button, consumer is without purposely going to switch by drive motor, so greatly improve the comfortableness of shopping, also greatly improve the intelligent of shopping cart；4, present invention employs pyroelectric infrared sensor circuit handle place is detected, only when consumer having been detected, and after handle foil gauge stress, left driving wheel motor and right driving wheel motor just can start to rotate, alleviate the burden of consumer, when avoiding foil gauge fault without consumer, the phenomenon that shopping cart runs automatically.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of manual mode electric shopping cart.
Fig. 2 is the front view of a kind of manual mode electric shopping cart.
Fig. 3 is the circuit structure diagram of a kind of manual mode electric shopping cart.
Fig. 4 is the circuit diagram of a kind of manual mode electric shopping cart.
In figure: 1, shopping cart car body；2, left driving wheel；3, right driving wheel；4, driven pulley；5, handle brackets；6, handle；7, handle left part control circuit；701, the first resistance strain gage；702, the first wheatstone bridge circuit；703, the first amplifying circuit；8, handle right part control circuit；801, the second resistance strain gage；802, the second wheatstone bridge circuit；803, the second amplifying circuit 9, pyroelectric infrared sensor circuit；901, pyroelectric infrared sensor；10, ultrasonic sensor；11, revolver motor circuit；1101, left driving wheel motor；12, right wheel motor circuit；1201, right driving wheel motor；13, single-chip minimum system；14, power supply.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with detailed description of the invention and with reference to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are illustrative of, and it is not intended to limit the scope of the present invention.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
Detailed description of the invention one: shown in Fig. 1-4, a kind of manual mode electric shopping cart includes 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, pyroelectric infrared sensor circuit 9, ultrasonic sensor 10, revolver motor circuit 11, right wheel motor circuit 12, single-chip minimum system 13, power supply 14；The top of shopping cart car body 1 side is provided with handle brackets 5, and one end of handle brackets 5 is bolt-connected on shopping cart car body 1, and the other end is fixing with handle 6 to be connected；One end of handle 6 is provided with handle left part control circuit 7, and the other end is provided with handle right part control circuit 8；At the center of handle brackets 5 and the junction of shopping cart car body 1 side, pyroelectric infrared sensor circuit 9 is installed；Have rectangular slot in the side top center installing pyroelectric infrared sensor circuit 9 relative, ultrasonic sensor 10 is installed in rectangular slot；Two driven pulleys 4 are installed bottom the shopping cart car body 1 of handle 6 side, bottom the shopping cart car body 1 of ultrasonic sensor 10 side, are separately installed with left driving wheel 2 and right driving wheel 3；Handle left part control circuit 7 includes the first resistance strain gage the 701, first wheatstone bridge circuit the 702, first amplifying circuit 703 and AD7810, first 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 one LM358；Resistance R5, resistance R4, resistance R6 and the first resistance strain gage 701 are forward connected into closed-loop path, the common port of resistance R5 and resistance R4 is connected with the outfan of power supply 14, the common end grounding of resistance R6 and the first resistance strain gage 701, the common port of resistance R4 and resistance R6 is connected with one end of slide rheostat RV1, the other end of slide rheostat RV1 is connected with one end of resistance R8, the other end of resistance R8 and the positive input of a LM358 connect, the common port of resistance R5 and the first resistance strain gage 701 is connected with one end of resistance R7, the other end of resistance R7 and the reverse input end of a LM358 connect；The reverse input end of the oneth LM358 is connected with outfan also by resistance R10, and the positive input of a LM358 is also by resistance R9 ground connection；The outfan of the oneth LM358 and the Vin+ pin of an AD7810 connect, the SCLK pin of the oneth AD7810 connects the P1.0 pin of single-chip minimum system 13, DOUT pin connects the P1.1 pin of single-chip minimum system 13, and CONVST pin connects the P1.2 pin of single-chip minimum system 13；Handle right part control circuit 8 includes the second resistance strain gage the 801, second wheatstone bridge circuit the 802, second amplifying circuit 803 and the 2nd AD7810, second wheatstone bridge circuit 802 includes resistance R11, resistance R12, resistance R13, and the second amplifying circuit 803 includes slide-changing resistor device RV2, resistance R15, resistance R16, resistance R17, resistance R18 and the two LM358；Resistance R12, resistance R11, resistance R13 and the second resistance strain gage 801 are forward connected into closed-loop path, the common port of resistance R11 and resistance R12 is connected with the outfan of power supply 14, the common end grounding of resistance R13 and the second resistance strain gage 801, the common port of resistance R11 and resistance R13 is connected with one end of slide rheostat RV2, the other end of slide rheostat RV2 is connected with one end of resistance R16, the positive input of the other end the 2nd LM358 of resistance R16 connects, the common port of resistance R12 and the second resistance strain gage 801 is connected with one end of resistance R15, the other end of resistance R15 and the reverse input end of the 2nd LM358 connect；The reverse input end of the 2nd LM358 is connected with outfan also by resistance R18, and the positive input of the 2nd LM358 is also by resistance R17 ground connection；The outfan of the 2nd LM358 and the Vin+ pin of the 2nd AD7810 connect, the SCLK pin of the 2nd LM358 connects the P1.3 pin of single-chip minimum system 13, DOUT pin connects the P1.4 pin of single-chip minimum system 13, and CONVST pin connects the P1.5 pin of single-chip minimum system 13；Revolver motor circuit 11 includes resistance R2, diode D1, audion Q1, relay R L1 and left driving wheel motor 1101, and wherein the P0.0 pin of single-chip minimum system 13 is connected by the base stage of resistance R2 and audion Q1；Coil one end of relay R L1 is connected with the outfan of power supply 14, the other end is connected with the colelctor electrode of audion Q1, inverse parallel diode D1 on the coil of relay R L1；The grounded emitter of audion Q1；One end, contact of relay R L1 is connected with the outfan of power supply 14, and the other end is connected with one end of left driving wheel motor 1101, the other end ground connection of left driving wheel motor 1101；Right wheel motor circuit 12 includes resistance R3, diode D2, audion Q2, relay R L2 and right driving wheel motor 1201, and wherein the P0.1 pin of single-chip minimum system 13 is connected by the base stage of R3 and audion Q2；Coil one end of relay R L2 is connected with the outfan of power supply 14, the other end is connected with the colelctor electrode of audion Q2, inverse parallel diode D2 on the coil of relay R L2；The grounded emitter of audion Q2；One end, contact of relay R L2 is connected with the outfan of power supply 14, and the other end is connected with one end of right driving wheel motor 1201, the other end ground connection of right driving wheel motor 1201；The TRIG pin of ultrasonic sensor 10 is connected with the P2.6 pin of single-chip minimum system 13, and the ECHO pin of ultrasonic sensor 10 is connected with the P3.2 pin of single-chip minimum system 13；Pyroelectric infrared sensor circuit 9 includes pyroelectric infrared sensor 901, resistance R14, resistance R19, resistance R20 and audion Q3, the VCC pin of pyroelectric infrared sensor 901 is connected with the outfan of power supply 14, the VCC pin of pyroelectric infrared sensor 901 is also connected with one end of resistance R14, and the other end of resistance R14 is all connected with the colelctor electrode of audion Q3 and the P1.7 pin of single-chip minimum system 13；The OUT pin of pyroelectric infrared sensor 901 is connected with one end of resistance R19, and the other end of resistance R19 is connected with the base stage of audion Q3；One end of resistance R20 is connected with the base stage of audion Q3, other end ground connection；The GND pin ground connection of pyroelectric infrared sensor 901；Left driving wheel motor 1101 and right driving wheel motor 1201 are connected with left driving wheel 2 and right driving wheel 3 by conveyer belt or gear；Power supply 14 adopts accumulator, exportable 12V and 5V DC voltage, coil, the coil of relay R L2, left driving wheel motor 1101 and right driving wheel motor 1201 that power supply 14 is relay R L1 provide 12V voltage, and power supply 14 is ultrasonic sensor 10, single-chip minimum system the 13, the oneth AD7810, the 2nd AD7810 and pyroelectric infrared sensor 901 provide 5V burning voltage；The sensor that ultrasonic sensor 10 adopts model to be HC-SR04, the sensor that pyroelectric infrared sensor 901 adopts model to be LHI878.
Operation principle is introduced: when needs use shopping cart time, consumer's opening power 14 switchs, coil, the coil of relay R L2, left driving wheel motor 1101 and right driving wheel motor 1201 that now power supply 14 is relay R L1 provide 12V voltage, power supply 14 is ultrasonic sensor 10, single-chip minimum system the 13, the oneth AD7810, the 2nd AD7810 and pyroelectric infrared sensor 901 provide 5V burning voltage, power supply 14 adopts accumulator, exportable 12V and 5V DC voltage, can also charge to it when accumulator does not have electric time.
Advancement function: in time wishing that shopping cart advances, consumer holds handle left part control circuit 7 and the handle right part control circuit 8 at handle 6 place respectively with right-hand man, owing to being travel forward, now consumer is suitable to the grip of handle 6, now deformation produced by the first resistance strain gage 701 and the second resistance strain gage 801 is also suitable, even if having certain error, but in certain scope；Conversion through the amplification of first amplifying circuit the 703, second amplifying circuit 803 and an AD7810, the 2nd AD7810 transducer, input to single-chip minimum system 13, single-chip minimum system 13 exports high level by P0.0 pin makes audion Q1 turn on, and the contact change-over of relay R L1 makes left driving wheel motor 1101 obtain electric and rotate；In like manner single-chip minimum system 13 makes audion Q2 turn on by P0.1 pin output high level, the contact change-over of relay R L2 makes right driving wheel motor 1201 obtain electric and rotate, under the drive of left driving wheel motor 1101 and right driving wheel motor 1201, shopping cart runs forward, and handle only need to be imposed certain grip by consumer.
Left-hand rotation function: in time wishing that shopping cart turns left, consumer has only to left hand and holds with a firm grip the handle left part control circuit 7 at handle 6 place, the right hand holds handle right part control circuit 8, owing to the left hand power that handle left part control circuit 7 applies of holding with a firm grip holds, more than the right hand, the power that handle right part control circuit 8 applies, the deformation that now the first resistance strain gage 701 produces also can much larger than deformation produced by the second resistance strain gage 801；Conversion through the amplification of first amplifying circuit the 703, second amplifying circuit 803 and an AD7810, the 2nd AD7810 transducer, input to single-chip minimum system 13, the difference of two force value that single-chip minimum system 13 obtains is more than setting value, now single-chip minimum system 13 makes audion Q1 turn off by P0.0 pin output low level, and the contact change-over of relay R L1 makes left driving wheel motor 1101 dead electricity and stops operating；In like manner single-chip minimum system 13 makes audion Q2 turn on by P0.1 pin output high level, the contact change-over of relay R L2 makes right driving wheel motor 1201 obtain electric and rotate, owing to left driving wheel motor 1101 does not turn, right driving wheel motor 1201 rotates so that shopping cart starts to turn left；When without turning again time, impose sizable power and move on.
Right-hand rotation function: in time wishing that shopping cart is turned right, only needs the right hand to hold with a firm grip handle right part control circuit 8, and left hand holds handle left part control circuit 7 can realize right-hand rotation function.
It should be appreciated that the above-mentioned detailed description of the invention of the present invention is used only for exemplary illustration or explains principles of the invention, and it is not construed as limiting the invention.Therefore, any amendment of making when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., should be included within protection scope of the present invention.Additionally, claims of the present invention be intended to fall in the equivalents on scope and border or this scope and border whole change and modifications example.
Claims (5)
1. a manual mode electric shopping cart, it is characterised in that: include 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), pyroelectric infrared sensor circuit (9), ultrasonic sensor (10), revolver motor circuit (11), right wheel motor circuit (12), single-chip minimum system (13), power supply (14)；Be provided with handle brackets (5) at the top of shopping cart car body (1) side, one end of handle brackets (5) is bolt-connected on shopping cart car body (1), and the other end is fixing with handle (6) to be connected；One end of handle (6) is provided with handle left part control circuit (7), and the other end is provided with handle right part control circuit (8)；At the center of handle brackets (5) and the junction of shopping cart car body (1) side, pyroelectric infrared sensor circuit (9) is installed；Have rectangular slot in the side top center installing pyroelectric infrared sensor circuit (9) relative, ultrasonic sensor (10) is installed in rectangular slot；Shopping cart car body (1) bottom in handle (6) side is provided with two driven pulleys (4), and shopping cart car body (1) bottom in ultrasonic sensor (10) side is separately installed with left driving wheel (2) and right driving wheel (3)；Handle left part control circuit (7) includes the first resistance strain gage (701), the first wheatstone bridge circuit (702), the first amplifying circuit (703) and an AD7810, first 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 one LM358；Resistance R5, resistance R4, resistance R6 and the first resistance strain gage (701) are forward connected into closed-loop path, the common port of resistance R5 and resistance R4 is connected with the outfan of power supply (14), the common end grounding of resistance R6 and the first resistance strain gage (701), the common port of resistance R4 and resistance R6 is connected with one end of slide rheostat RV1, the other end of slide rheostat RV1 is connected with one end of resistance R8, the other end of resistance R8 and the positive input of a LM358 connect, the common port of resistance R5 and the first resistance strain gage (701) is connected with one end of resistance R7, the other end of resistance R7 and the reverse input end of a LM358 connect；The reverse input end of the oneth LM358 is connected with outfan also by resistance R10, and the positive input of a LM358 is also by resistance R9 ground connection；The outfan of the oneth LM358 and the Vin+ pin of an AD7810 connect, the SCLK pin of the oneth AD7810 connects the P1.0 pin of single-chip minimum system (13), DOUT pin connects the P1.1 pin of single-chip minimum system (13), and CONVST pin connects the P1.2 pin of single-chip minimum system (13)；Handle right part control circuit (8) includes the second resistance strain gage (801), the second wheatstone bridge circuit (802), the second amplifying circuit (803) and the 2nd AD7810, second wheatstone bridge circuit (802) includes resistance R11, resistance R12, resistance R13, and the second amplifying circuit (803) includes slide-changing resistor device RV2, resistance R15, resistance R16, resistance R17, resistance R18 and the two LM358；Resistance R12, resistance R11, resistance R13 and the second resistance strain gage (801) are forward connected into closed-loop path, the common port of resistance R11 and resistance R12 is connected with the outfan of power supply (14), the common end grounding of resistance R13 and the second resistance strain gage (801), the common port of resistance R11 and resistance R13 is connected with one end of slide rheostat RV2, the other end of slide rheostat RV2 is connected with one end of resistance R16, the positive input of the other end the 2nd LM358 of resistance R16 connects, the common port of resistance R12 and the second resistance strain gage (801) is connected with one end of resistance R15, the other end of resistance R15 and the reverse input end of the 2nd LM358 connect；The reverse input end of the 2nd LM358 is connected with outfan also by resistance R18, and the positive input of the 2nd LM358 is also by resistance R17 ground connection；The outfan of the 2nd LM358 and the Vin+ pin of the 2nd AD7810 connect, the SCLK pin of the 2nd LM358 connects the P1.3 pin of single-chip minimum system (13), DOUT pin connects the P1.4 pin of single-chip minimum system (13), and CONVST pin connects the P1.5 pin of single-chip minimum system (13)；Revolver motor circuit (11) includes resistance R2, diode D1, audion Q1, relay R L1 and left driving wheel motor (1101), and wherein the P0.0 pin of single-chip minimum system (13) is connected by the base stage of resistance R2 and audion Q1；Coil one end of relay R L1 is connected with the outfan of power supply (14), the other end is connected with the colelctor electrode of audion Q1, inverse parallel diode D1 on the coil of relay R L1；The grounded emitter of audion Q1；One end, contact of relay R L1 is connected with the outfan of power supply (14), and the other end is connected with the one end of left driving wheel motor (1101), the other end ground connection of left driving wheel motor (1101)；Right wheel motor circuit (12) includes resistance R3, diode D2, audion Q2, relay R L2 and right driving wheel motor (1201), and wherein the P0.1 pin of single-chip minimum system (13) is connected by the base stage of R3 and audion Q2；Coil one end of relay R L2 is connected with the outfan of power supply (14), the other end is connected with the colelctor electrode of audion Q2, inverse parallel diode D2 on the coil of relay R L2；The grounded emitter of audion Q2；One end, contact of relay R L2 is connected with the outfan of power supply (14), and the other end is connected with the one end of right driving wheel motor (1201), the other end ground connection of right driving wheel motor (1201).
2. according to claim 1, a kind of manual mode electric shopping cart is characterized in that: the TRIG pin of ultrasonic sensor (10) is connected with the P2.6 pin of single-chip minimum system (13), and the ECHO pin of ultrasonic sensor (10) is connected with the P3.2 pin of single-chip minimum system (13)；Pyroelectric infrared sensor circuit (9) includes pyroelectric infrared sensor (901), resistance R14, resistance R19, resistance R20 and audion Q3, the VCC pin of pyroelectric infrared sensor (901) is connected with the outfan of power supply (14), the VCC pin of pyroelectric infrared sensor (901) is also connected with resistance R14 one end, and the other end of resistance R14 is all connected with the colelctor electrode of audion Q3 and the P1.7 pin of single-chip minimum system (13)；The OUT pin of pyroelectric infrared sensor (901) is connected with one end of resistance R19, and the other end of resistance R19 is connected with the base stage of audion Q3；One end of resistance R20 is connected with the base stage of audion Q3, other end ground connection；The GND pin ground connection of pyroelectric infrared sensor (901).
3. according to claim 1, a kind of manual mode electric shopping cart is characterized in that: left driving wheel motor (1101) and right driving wheel motor (1201) are connected with left driving wheel (2) and right driving wheel (3) by conveyer belt or gear.
4. according to claim 1 and 2, a kind of manual mode electric shopping cart is characterized in that: power supply (14) adopts accumulator, exportable 12V and 5V DC voltage, coil that power supply (14) is relay R L1, the coil of relay R L2, left driving wheel motor (1101) and right driving wheel motor (1201) provide 12V voltage, and power supply (14) is ultrasonic sensor (10), single-chip minimum system (13), an AD7810, the 2nd AD7810 and pyroelectric infrared sensor (901) provide 5V burning voltage.
5. according to claim 1 and 2, a kind of manual mode electric shopping cart is characterized in that: ultrasonic sensor (10) adopts model to be the sensor of HC-SR04, and pyroelectric infrared sensor (901) adopts model to be the sensor of LHI878.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710928465.7A CN107719447A (en) | 2015-09-07 | 2015-09-07 | The manual mode electric shopping cart of people or shelf can be avoided bumping against |
| CN201710928507.7A CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
| CN201710798081.8A CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710928426.7A CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
| CN201710928516.6A CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
| CN201510562837.XA CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710928426.7A Division CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
| CN201710928516.6A Division CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
| CN201710928507.7A Division CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
| CN201710798081.8A Division CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201710928465.7A Division CN107719447A (en) | 2015-09-07 | 2015-09-07 | The manual mode electric shopping cart of people or shelf can be avoided bumping against |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105711633A true CN105711633A (en) | 2016-06-29 |
| CN105711633B CN105711633B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798081.8A Pending CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
| CN201510562837.XA Expired - Fee Related CN105711633B (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode 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 |
| CN201710928507.7A Withdrawn CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
| CN201710928516.6A Withdrawn CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
| CN201710928426.7A Withdrawn CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710798081.8A Pending CN107472341A (en) | 2015-09-07 | 2015-09-07 | A kind of manual mode electric shopping cart |
Family Applications After (4)
| 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 |
| CN201710928507.7A Withdrawn CN107738674A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart and its method of work |
| CN201710928516.6A Withdrawn CN107697122A (en) | 2015-09-07 | 2015-09-07 | A kind of electric shopping cart |
| CN201710928426.7A Withdrawn CN107738673A (en) | 2015-09-07 | 2015-09-07 | Manual mode electric shopping cart and its method of work |
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| Country | Link |
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| CN (6) | CN107472341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472341A (en) * | 2015-09-07 | 2017-12-15 | 罗文凤 | A kind of manual mode electric shopping cart |
| CN108382426A (en) * | 2018-04-13 | 2018-08-10 | 郭昊 | A kind of intelligent shopping trolley |
| 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 CN201510562837.XA patent/CN105711633B/en not_active Expired - Fee Related
- 2015-09-07 CN CN201710928465.7A patent/CN107719447A/en not_active Withdrawn
- 2015-09-07 CN CN201710928507.7A patent/CN107738674A/en not_active Withdrawn
- 2015-09-07 CN CN201710928516.6A patent/CN107697122A/en not_active Withdrawn
- 2015-09-07 CN CN201710928426.7A patent/CN107738673A/en not_active Withdrawn
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107738674A (en) | 2018-02-27 |
| CN107697122A (en) | 2018-02-16 |
| CN105711633B (en) | 2017-11-24 |
| CN107719447A (en) | 2018-02-23 |
| CN107472341A (en) | 2017-12-15 |
| CN107738673A (en) | 2018-02-27 |
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