CN104699330A - Dish ordering system used for canteens and based on infrared area array detection - Google Patents
Dish ordering system used for canteens and based on infrared area array detection Download PDFInfo
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Abstract
The invention discloses a dish ordering system used for canteens and based on infrared area array detection. The dish ordering system comprises a bracket, infrared arrays, indicator lamps and a processor, wherein each indicator corresponds to a dinner plate; each infrared array forms an infrared detection surface formed by a transverse infrared beam group and a longitudinal infrared beam group; on and off states of infrared beams are input into the processor; the processor is used for obtaining the on and off states of each infrared beam in each infrared detection surface respectively, obtaining a rectangle defined by the infrared beams in off states and a central point of the rectangle, fitting the central point of the rectangle of the surface into a straight line, obtaining a crossed point of the fitted straight line and the plane on which the dinner plate is positioned, finally judging that the crossed point is positioned in which of dinner plate regions, enabling the dinner plate region, on which the crossed point is positioned, as a dish selected by a diner, turning on the indicator lamp corresponding to the dinner plate region on which the crossed point is positioned, and turning off the rest indicator lamps. The dish ordering system has the advantage of capability of accurately obtaining a target dish according to a gesture of the diner.
Description
Technical field
The present invention relates to a kind of dining room formula order dishes system detected based on infrared surface battle array.
Technical background
Present college student dining is based on dining room, student's food plan of Forum on College Eating-room is: diner is arranged in right, the diner of head of the queue beats dish personnel and the name of the dish oneself needed is described to dining room, beat dish personnel according to name of the dish for diner buys dish, then beat dish personnel and calculate institute's spending amount, and spending amount is input to card reader, being swiped the card by diner pays.
Because the meal time concentrates, during dining, The clamors of the people bubble up in dining room, add that diner can be with to have an accent, beat dish personnel to be not easy to catch the said name of the dish of diner, diner also can adopt and refer to that gesture indicates the dish of oneself needs, but because diner is different with beating dish personnel present position, beat dish personnel to be also not easy to determine that diner refers to the target vegetable that gesture is pointed to, and beaten the amount of money that dish also needs dozen dish personnel to calculate dining personnel to consume at every turn, and at the enterprising line operate of card reader, make the efficiency of buying dish not high.
Summary of the invention
In order to overcome current dining room buy dish time, buy the target vegetable that dish personnel are not easy to determine that diner indicates, beat dish personnel to need to do a sum orally and obtain the shortcoming of spending amount, the invention provides and a kind ofly can accurately obtain according to the gesture of dining people the dining room formula order dishes system that target vegetable detects based on infrared surface battle array.
Based on the dining room formula order dishes system that infrared surface battle array detects, comprise support, be installed on the infrared array on support, pilot lamp and processor, the corresponding vegetable dish of each pilot lamp; Infrared array is installed on support, the quantity of infrared array is multiple, each infrared array forms an infrared detection face formed by horizontal infrared beams group and longitudinal infrared beams group, and infrared detection face be arranged in parallel, and each infrared beams has wire harness mark; In the switching state input processor of infrared beams; When diner orders dishes, arm is through each infrared detection face, is in off-state, is not in connected state by the infrared beams that arm blocks by the infrared beams that arm blocks;
Processor obtains the switching state of each infrared beams in each infrared detection face respectively, the rectangle that the infrared beams obtaining off-state surrounds also obtains the central point of this rectangle, straight line is fitted to again with the rectangular centre of each point, obtain the intersection point in fitting a straight line and face, vegetable dish place, finally judge that this intersection point is in the region of which vegetable dish, the vegetable that the vegetable dish region at intersection point place is chosen as diner, processor makes the pilot lamp corresponding with vegetable dish region, intersection point place light, and all the other pilot lamp are in OFF state.
Further, infrared detection face equidistantly distributes, the equidistant parallel distribution of wire harness of horizontal infrared beams group, the equidistant parallel distribution of wire harness of longitudinal infrared beams group.Infrared beams is sent by the infrared transmitter arranged in pairs and infrared receiver and is received, and when the light path between infrared transmitter and infrared receiver is blocked, this infrared beams is in off-state; When light path between infrared transmitter and infrared receiver is unobstructed, this infrared beams is in on-state.
Further, when infrared beams is in on-state, infrared receiver sets high level and in input processor, when infrared beams is in off-state, infrared receiver sets low level and in input processor, processor obtains the signal of each infrared receiver; Processor is using one of them infrared detection face as benchmaring face, in benchmaring face, any one infrared receiver or infrared transmitter position are as coordinate origin, using horizontal infrared beams group place straight line as X-axis, using longitudinal infrared beams group place straight line as Y-axis, set up XYZO coordinate system using the orientation in infrared detection face as Z axis, the plane at vegetable dish place is parallel with XOZ face, and each infrared transmitter and receiver arrange coordinate with the distance of itself and coordinate origin; Processor obtains each infrared detection face respectively and obtains and be in the infrared transmitter of off-state and the coordinate of infrared receiver, and obtains the rectangular area that these coordinates surround.
Further, with the infrared detection face closest to vegetable dish for benchmaring face, using the position of the infrared remote receiver in the lower left corner in the infrared detection face closest to vegetable dish as true origin, measure the distance obtaining vegetable dish place plane and true origin, and obtain four summits of each vegetable dish and the distance of true origin, the coordinate on four of vegetable dish summits is pre-stored in processor.
Further, processor is in line by least square fitting with the rectangular centre of each point, after fitting a straight line generates, processor calculates the distance of each rectangular centre point and fitting a straight line respectively, reject the central point being greater than predetermined limit distance, again remaining rectangular centre point is in line by least square fitting, then calculates the distance of each rectangular centre point and fitting a straight line respectively, reject the central point being greater than predetermined limit distance; Iteration like this repeatedly, until the distance of all central points and fitting a straight line is less than predetermined limit distance, or till iterations reaches default iterations; Predetermined limit Distance geometry iterations is all pre-stored in processor.
Further, the corresponding relation of pilot lamp and vegetable dish is pre-stored in processor, the dish valency of vegetable dish and vegetable dish one_to_one corresponding, when pilot lamp lights, carries out the calculating of dish valency in the dish valency input processor of corresponding vegetable dish.
When pilot lamp lights, represent the vegetable dish corresponding with pilot lamp selected.Do following requirement when ordering dishes: when ordering dishes, hand will be in the scope in all infrared detection faces, and order dish, hand leaves, after system does not detect hand-held continuous a few second, think end of ordering dishes.Then processor calculates in the dish valency summation input machine for punching the card obtained, and machine for punching the card is fixedly installed on support.Agreement refers to once this vegetable dish again, and the pilot lamp on limit knocks out, and represents and does not select this dish, and the amount of money is also left out from the cumulative amount of money.After swiping the card, system reset, accumulative dish valency resets, and prepares.
Further, support is provided with the camera can taking actual vegetable picture in vegetable dish, in the actual vegetable picture input processor that camera obtains, vegetable image and vegetable price correspondence table is preset with in processor, the actual vegetable picture that camera obtains by processor and vegetable image comparison, search out the vegetable image the most close with actual vegetable picture and vegetable price, make vegetable price and vegetable dish one_to_one corresponding.
Due to when dish is bought in dining room, diner normally forms the vegetable needed for straight line sensing with arm, therefore, the present invention is by intercepting the segment signal of diner through infrared detection face, and matching forms the pointing direction of diner, thus obtain corresponding vegetable, overcome dining room environment noisy, sound is identification problem not easily.
Beneficial effect of the present invention is:
1, under the noisy environment in dining room, high efficiency operation of ordering dishes is realized, diner can select to order dishes on the touch-screen of dish ordering terminal, also can select with referring to that gesture completes operation of ordering dishes, formula order dishes system calculates spending amount according to the situation of ordering dishes automatically, and sends spending amount to card reader.
2, vision system can identify the dish information on vegetable dish table in each vegetable dish, can tackle the situations such as vegetable replacing, without the need to artificial participation, improves the work efficiency in dining room.
3, beat dish personnel only to need to carry out buying dish according to pilot lamp, settle accounts and completed by processor, the labour intensity beating dish personnel is reduced, improves dining room efficiency.
Accompanying drawing explanation
Fig. 1 is device one-piece construction schematic diagram.
Fig. 2 is camera and camera mount pad arrangenent diagram.
Fig. 3 is LED light schematic diagram.
Fig. 4 is the vegetable dish image that camera B gathers.
Fig. 5 is infrared detection face schematic diagram.
Fig. 6 is infrared detection face principle schematic.
Fig. 7 upgrades dish information workflow diagram.
In figure 1, vegetable dish, 2, LED light, 3, vegetable dish table, 4, infrared detection face battle array, 5, support, 6, camera mount pad, 7, camera, 8, dish ordering terminal, 9, back up pad, 10, card reader, 11, wall.
Embodiment
As shown in Figure 1, ordering dishes servicing unit in a kind of dining room based on machine vision, comprises processor, support 5, camera mount pad 6, camera 7, vegetable dish 1, LED light 2, vegetable dish table 3, dish ordering terminal 8, multiple infrared detection face 4, back up pad 9, card reader 10, wall 11, screw.
As shown in Figure 2, support 5 is provided with the camera 7 can taking actual vegetable picture in vegetable dish, in the actual vegetable picture input processor that camera 7 obtains, vegetable image and vegetable price correspondence table is preset with in processor, the actual vegetable picture that camera obtains by processor with vegetable image comparison, search out the vegetable image consistent with actual vegetable picture and vegetable price, make vegetable price and pilot lamp 2 one_to_one corresponding.
As shown in Figure 3, described vegetable dish 1 is placed on vegetable dish table 3, and each vegetable dish 1 side is provided with LED light 2.Wall 11 body is provided with back up pad 9, back up pad 9 is provided with dish ordering terminal 8, dish ordering terminal 8 side is provided with card reader 10, back up pad 9 is provided with support 5, support 5 is provided with horizontal infrared ray and sends array, horizontal infrared receiver array, longitudinal infrared ray sends array, longitudinal infrared receiver array.Be in conplane horizontal infrared ray and send array, horizontal infrared receiver array, longitudinal infrared ray sends array, and longitudinal infrared receiver array forms an infrared detection face 4.
Horizontal infrared ray sends array, horizontal infrared receiver array, longitudinal infrared ray sends array and longitudinal infrared receiver array forms infrared detection face 4 one by one, these infrared detection faces 4 detect the forearm of diner towards, and then completed by the sensing of arm and order dishes.Camera 7B is for gathering the picture of vegetable dish 1 on the same day, and camera 7, dish ordering terminal 8, LED light 2 and card reader 10 are connected to processor, by processor unified management.
Infrared detection face 4 is by the horizontal infrared transmitter of row, one row level infrared light receiver, the one longitudinal infrared transmitter of row and the vertical infrared receiver composition of row, each horizontal infrared transmitter is corresponding with a level infrared light receiver, each longitudinal infrared transmitter is corresponding with a vertical infrared receiver, be embedded in when not blocking, level infrared light receiver can receive the infrared beam from the horizontal infrared transmitter of correspondence, and vertical infrared receiver can receive the infrared beam from the longitudinal infrared transmitter of correspondence.
With the infrared detection face closest to vegetable dish 1 for benchmaring face, using the position of the infrared remote receiver in the lower left corner in the infrared detection face closest to vegetable dish 1 as true origin, using horizontal infrared beams group place straight line as X-axis, using longitudinal infrared beams group place straight line as Y-axis, set up XYZO coordinate system using the orientation in infrared detection face as Z axis, the plane at vegetable dish place is parallel with XOZ face, and each infrared transmitter and receiver arrange coordinate with the distance of itself and coordinate origin; Processor obtains each infrared detection face respectively and obtains and be in the infrared transmitter of off-state and the coordinate of infrared receiver, and obtains the rectangular area that these coordinates surround; Measure the distance obtaining vegetable dish 1 place plane and true origin, and obtain four summits of each vegetable dish 1 and the distance of true origin, the coordinate on four of vegetable dish 1 summits is pre-stored in processor.Although the present embodiment illustrates for benchmaring face for the infrared detection face closest to vegetable dish 1, but the situation that to be not limited to this infrared detection face be benchmaring face, also can be for benchmaring face with other infrared detection face, because the installation site in infrared detection face is determined, position and the adjacent distance of each infrared transmitter and infrared receiver are known, only need coordinate transforming value with the outer detection faces of Different Red for during benchmaring face.
Equidistantly L arranges infrared detection face 4 as shown in Figure 5, and the quantity of detection faces is arranged according to the length of forearm, is at least two.When diner orders dishes, in the surveyed area of infrared detection face 4, the vegetable dish 1 needed is pointed to arm, due to blocking of diner's forearm, 4 li, each infrared detection face has parts transversely and longitudinal infrared receiver is blocked, and the part that these block can reflect diner's forearm position in each detection faces, these positions are coupled together in space, the forearm being diner towards, according to forearm towards extended line drop in the region of certain vegetable dish 1, be and select this dish, the LED light 2 corresponding with vegetable dish 1 lights.
When diner's forearm is in surveyed area, in each detection faces, the infrared beams that forearm meeting shield portions is horizontal and vertical, makes corresponding infrared receiver not receive signal.When light path between infrared transmitter and infrared receiver is blocked, this infrared beams is in off-state, and infrared receiver sets low level, value is in 0 input processor; When light path between infrared transmitter and infrared receiver is unobstructed, this infrared beams is in on-state, and infrared receiver sets high level, value is in 1 input processor.Processor reads the value of each infrared receiver, obtains arm kernel of section and is in coordinate position in current detection areal coordinate system, and in detection faces, the spacing of wire harness is arranged according to the size of forearm, and 0.5cm is got at the interval of the present embodiment middle infrared (Mid-IR) bundle.
Processor reads the horizontal infrared receiver of i-th detection faces
,
,
...,
(k is the horizontal infrared receiver number in each infrared detection face) and longitudinal infrared receiver
,
,
...,
the output valve of (k is the number of longitudinal infrared receiver in each infrared detection face), output valve is the region that the horizontal and vertical infrared receiver of 0 and the level of correspondence and longitudinal infrared transmitter are determined to be blocked in i-th detection faces, region namely residing for forearm, this region is rectangle, arm cross section is oval, the region be blocked in i-th detection faces is the rectangular area blocked by arm, as long as infrared beams is abundant, arm cross section will be concentric with this rectangular area, then we are using the centre coordinate of the center of rectangular area as arm cross section in i-th detection faces, be designated as (
), the centre coordinate of arm cross section in i-th detection faces (
) coordinate in OXYZ coordinate system be (
), wherein
it is the distance in i-th detection faces distance benchmark infrared detection face.
The boundary rectangle computing method of arm cross section ellipse are, get the horizontal infrared receiver of i-th detection faces respectively
,
,
...,
(k is the horizontal infrared receiver number of each detection faces) and longitudinal infrared receiver
,
,
...,
the coordinate at the sensor place residing for sensor centre that output valve is 0 in (longitudinal infrared receiver number that k is each detection faces), the installing space of horizontal infrared receiver and longitudinal infrared receiver is d, if horizontal infrared receiver
,
,
output valve is 0, longitudinal infrared receiver
,
,
output valve is 0, then rectangular area centre coordinate is { [p+ (q-p)/2] d, [e+ (f-e)/2] d }.
As shown in Figure 6,9, No. 10 now horizontal infrared receivers are covered, 11,12 and No. 13 infrared receivers of vertical direction are covered; get and covered the mean value of horizontal ordinate and ordinate as the position of arm cross section in this detection faces, the X axis coordinate using 12d and 9.5d as forearm in coordinate system residing for i-th detection faces
with Y-axis coordinate
, be the coordinate as arm cross section using the distance of i-th detection faces distance the 1st detection faces
, so obtain the central point of forearm in each detection faces coordinate (
).Become straight concrete grammar as follows by least square fitting on the coordinate of the rectangular area central point utilizing forearm in each infrared detection face:
Fitting a straight line formula is as follows:
Abbreviation is
Wherein:
Adopt minimum two-value method fitting a straight line equation, forearm spatial point coordinate that i-th infrared detection face 4 is detected (
), calculate the parameter a of the straight-line equation of wanted matching, b, c and d are as follows:
After fitting a straight line generates, processor calculates the distance of each rectangular centre point and fitting a straight line respectively, reject the central point being greater than predetermined limit distance, again remaining rectangular centre point is in line by least square fitting, calculate the distance of each rectangular centre point and fitting a straight line more respectively, reject the central point being greater than predetermined limit distance; Iteration like this repeatedly, until the distance of all central points and fitting a straight line is less than predetermined limit distance, or is fallen and is beaten till number of times reaches default iterations; Predetermined limit Distance geometry iterations is all pre-stored in processor.
And m vegetable dish is a region in coordinate system OXYZ, the Representation Equation is as follows:
Wherein:
, be the plane at vegetable dish place,
for vegetable dish is to plane
distance, m vegetable dish four summits are in plane
subpoint be respectively (
,
), (
,
), (
,
) and (
,
).
Note forearm place straight line
with vegetable dish place plane
intersection point be (
,
), by judge intersection point (
,
) belong to which vegetable dish region in (also namely meet
) m, can know that forearm place straight line is crossing with m vegetable dish region, selected by diner is the dish of m vegetable dish.
Technical conceive of the present invention is: ready-made for same day dish is contained in vegetable dish 1 by dining room personnel, and be positioned on vegetable dish table 3, camera 7 gathers the picture of whole vegetable dish table 3, and the picture of collection is sent to processor, processor program divides surveyed area according to the position of vegetable dish 1 each in gathered image, each surveyed area of program scanning, extract the characteristics of image of the vegetable in each surveyed area, and mate with the characteristics of image of vegetable in database, obtain the information of the vegetable in each vegetable dish 1, comprise title, price, these information are saved to processor.
Diner selects mode of ordering dishes, can select to carry out operation of ordering dishes on dish ordering terminal 8, the menu of diner is sent to processor by dish ordering terminal 8, or diner can select to make in infrared surface battle array surveyed area and refer to gesture action, processor reads the value of each detection faces infrared receiver, thus determine the position of diner's forearm in each detection faces, then these position coordinateses are fitted to straight line by processor, obtain the spatial attitude of forearm when diner orders dishes, judge forearm towards extended line drop in the region of which vegetable dish 1, be and select this dish, the LED light 2 corresponding with vegetable dish 1 lights, order dishes, beat dish personnel according to LED light 2 for diner accomplishes fluently dish, processor inquires the price of dish according to the dish clicked according to diner, calculate consumption total value, and pass to machine for punching the card by communication, having dinner swipes the card pays and takes food away.
The workflow of whole device is:
1. staff is by dining room menu typing processor, comprises menu name, price and picture.
2. upgrade each vegetable dish 1 dish information on the same day, the camera 7 being positioned at top gathers the image of vegetable dish 1 on dining room vegetable dish on same day table 3, the image gathered as shown in Figure 4, position according to each vegetable dish 1 divides processing region, characteristics of image in processing region is mated with the database feature of formula order dishes system, obtain title and the pricing information of vegetable in each vegetable dish 1 in dining room on the same day, its workflow as shown in Figure 7.
3. diner orders dishes, diner selects according to the hobby of oneself mode of ordering dishes, can the touch screen in selected element ordering system terminal order dishes, also can select to make in infrared surface battle array surveyed area and refer to gesture action, processor reads the value of each detection faces infrared receiver, thus determine the position of diner's forearm in each detection faces, then these position coordinateses are fitted to straight line by processor, obtain the spatial attitude of forearm when diner orders dishes, the target vegetable dish 1 that diner points to is determined according to the extended line in forearm direction and the intersection point of vegetable dish 1, diner can refer to gesture according to LED light 2 adjustment, repeat to make and refer to that gesture action can complete operation of ordering dishes, its principle of work as shown in Figure 6.
4. beat dish personnel and buy dish, the menu that formula order dishes system is selected according to diner, light the LED light 2 on corresponding vegetable dish 1 limit, beat dish personnel and complete dozen dish according to LED light 2.
5. diner swipes the card payment, the dish that processor clicks according to diner, and Query Database obtains the price of dish on the same day, and calculate diner's spending amount, and send spending amount to card reader 10, diner swipes the card and pays and take food away.
6. repeat step 4 ~ step 6.
This device can serve two diners in back up pad 9 simultaneously, beat dish personnel on vegetable dish table 3 both sides for two, processor reads the value of each detection faces infrared receiver, thus determine that the quantity of diner's forearm and each forearm are in the position of each detection faces, the forearm obtaining each diner towards, such as, if the left side of each detection faces and right side all do not find the arm blocking wire harness, then two diners select dish ordering terminal 8 to order dishes; If the left side of each detection faces finds arm, right side does not find, then the diner on the left side selects dish ordering terminal 8 to order dishes, and the diner on the right selects vision system to order dishes.
Content described in this instructions embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (6)
1. based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: comprise support, be installed on the infrared array on support, pilot lamp and processor, the corresponding vegetable dish of each pilot lamp; Infrared array is installed on support, the quantity of infrared array is multiple, each infrared array forms an infrared detection face formed by horizontal infrared beams group and longitudinal infrared beams group, and infrared detection face be arranged in parallel, and each infrared beams has wire harness mark; In the switching state input processor of infrared beams; When diner orders dishes, arm is through each infrared detection face, is in off-state, is not in connected state by the infrared beams that arm blocks by the infrared beams that arm blocks;
Processor obtains the switching state of each infrared beams in each infrared detection face respectively, the rectangle that the infrared beams obtaining off-state surrounds also obtains the central point of this rectangle, straight line is fitted to again with the rectangular centre of each point, obtain the intersection point in fitting a straight line and face, vegetable dish place, finally judge that this intersection point is in the region of which vegetable dish, the vegetable that the vegetable dish region at intersection point place is chosen as diner, processor makes the pilot lamp corresponding with vegetable dish region, intersection point place light, and all the other pilot lamp are in OFF state.
2., as claimed in claim 1 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: infrared detection face equidistantly distributes, the equidistant parallel distribution of wire harness of horizontal infrared beams group, the equidistant parallel distribution of wire harness of longitudinal infrared beams group.
3. as claimed in claim 2 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: when infrared beams is in on-state, infrared receiver sets high level and in input processor, when infrared beams is in off-state, infrared receiver sets low level and in input processor, processor obtains the signal of each infrared receiver; Processor is using one of them infrared detection face as benchmaring face, in benchmaring face, any one infrared receiver or infrared transmitter position are as coordinate origin, using horizontal infrared beams group place straight line as X-axis, using longitudinal infrared beams group place straight line as Y-axis, set up XYZO coordinate system using the orientation in infrared detection face as Z axis, the plane at vegetable dish place is parallel with XOZ face, and each infrared transmitter and receiver arrange coordinate with the distance of itself and coordinate origin; Processor obtains each infrared detection face respectively and obtains and be in the infrared transmitter of off-state and the coordinate of infrared receiver, and obtains the rectangular area that these coordinates surround.
4. as claimed in claim 3 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: with the infrared detection face closest to vegetable dish for benchmaring face, using the position of the infrared remote receiver in the lower left corner in the infrared detection face closest to vegetable dish as true origin, measure the distance obtaining vegetable dish place plane and true origin, and obtain four summits of each vegetable dish and the distance of true origin, by the seat on four of vegetable dish summits as claimed in claim 4 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: processor is in line by least square fitting with the rectangular centre of each point, after fitting a straight line generates, processor calculates the distance of each rectangular centre point and fitting a straight line respectively, reject the central point being greater than predetermined limit distance, again remaining rectangular centre point is in line by least square fitting, calculate the distance of each rectangular centre point and fitting a straight line more respectively, reject the central point being greater than predetermined limit distance, iteration like this repeatedly, until the distance of all central points and fitting a straight line is less than predetermined limit distance, or till iterations reaches default iterations, predetermined limit Distance geometry iterations is all pre-stored in processor.
5. as claimed in claim 4 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: the corresponding relation of pilot lamp and vegetable dish is pre-stored in processor, the dish valency of vegetable dish and vegetable dish one_to_one corresponding, when pilot lamp lights, carry out the calculating of dish valency in the dish valency input processor of vegetable dish.
6. as claimed in claim 5 based on the dining room formula order dishes system that infrared surface battle array detects, it is characterized in that: support is provided with the camera can taking actual vegetable picture in vegetable dish, in the actual vegetable picture input processor that camera obtains, vegetable image and vegetable price correspondence table is preset with in processor, the actual vegetable picture that camera obtains by processor with vegetable image comparison, search out the vegetable image consistent with actual vegetable picture and vegetable price, make vegetable price and vegetable dish one_to_one corresponding.
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Cited By (2)
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| CN109118681A (en) * | 2018-08-22 | 2019-01-01 | 明超 | Dining room service plate vegetable is had a prescription priced mechanism |
| CN113674199A (en) * | 2021-07-06 | 2021-11-19 | 浙江大华技术股份有限公司 | Parking space detection method, electronic device and storage medium |
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| CN1773560A (en) * | 2005-11-10 | 2006-05-17 | 上海交通大学 | Restaurant price fixing and dishes ordering device |
| CN101464754A (en) * | 2008-12-19 | 2009-06-24 | 卫明 | Positioning method and apparatus for implementing multi-point touch control for any plane without peripheral at four sides |
| CN101901088A (en) * | 2010-08-06 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Infrared control device |
| CN101907952A (en) * | 2010-03-25 | 2010-12-08 | 上海电子艺术发展有限公司 | Tabletop interactive meal ordering system and using method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773560A (en) * | 2005-11-10 | 2006-05-17 | 上海交通大学 | Restaurant price fixing and dishes ordering device |
| CN101464754A (en) * | 2008-12-19 | 2009-06-24 | 卫明 | Positioning method and apparatus for implementing multi-point touch control for any plane without peripheral at four sides |
| CN101907952A (en) * | 2010-03-25 | 2010-12-08 | 上海电子艺术发展有限公司 | Tabletop interactive meal ordering system and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118681A (en) * | 2018-08-22 | 2019-01-01 | 明超 | Dining room service plate vegetable is had a prescription priced mechanism |
| CN109118681B (en) * | 2018-08-22 | 2020-12-01 | 安徽省华腾农业科技有限公司经开区分公司 | Dining room dinner plate dish price marking mechanism |
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| CN104699330B (en) | 2017-12-15 |
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