CN111243166A - Prompting method for catering vending machine - Google Patents
Prompting method for catering vending machine Download PDFInfo
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- CN111243166A CN111243166A CN202010067702.7A CN202010067702A CN111243166A CN 111243166 A CN111243166 A CN 111243166A CN 202010067702 A CN202010067702 A CN 202010067702A CN 111243166 A CN111243166 A CN 111243166A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
Abstract
The invention relates to the technical field of unmanned sale, in particular to a prompting method for a catering vending machine; it comprises a food and beverage vending machine; the catering vending machine is provided with a user distinguishing prompt lamp belt, a voice alarm module and an identification module for identifying a user; the user distinguishing prompt lamp belt and the voice alarm module are electrically connected with the identification module; the method comprises the following steps: setting a user information database; when the user uses the identification module to identify the identity, whether the user is recorded in the user information database is judged: if the user is not in the user information database, the user distinguishing prompt lamp band lights up to alarm to remind the user, and the voice alarm module carries out voice alarm to remind the user. According to the catering vending machine, the user distinguishing prompt lamp strip and the voice alarm module are arranged, so that when a foreign person uses the catering vending machine, the user and the related person can be reminded of processing in time.
Description
Technical Field
The invention relates to the technical field of unmanned sale, in particular to a prompting method for a catering vending machine.
Background
The catering industry or the supermarket integrates instant processing, manufacturing, commercial sale and service labor, and provides various drinks and articles for consumers, and the article production and management industry of consumption places and facilities, which belongs to the labor-intensive industry in the prior art. Along with the popularization of commercial automation, a plurality of vending machines gradually appear on the market, can sell commodities automatically, save manpower and facilitate transactions.
Use the food and beverage vending machine in company's dining room, also be automatic make the dish machine, if there is the extraneous personnel to use this vending machine, then because the extraneous personnel do not carry out relevant registration, consequently, this part of extraneous personnel can not normal use or unable normal use vending machine.
Disclosure of Invention
The invention aims to overcome the defects and provides a prompting method for a catering vending machine, which can prompt a user and related personnel to handle when foreign personnel use the catering vending machine.
In order to achieve the purpose, the invention adopts the following specific scheme: a prompt method for a food and beverage vending machine comprises the steps of providing a food and beverage vending machine; the catering vending machine is provided with a user distinguishing prompt lamp belt, a voice alarm module and an identification module for identifying a user; the user distinguishing prompt lamp belt and the voice alarm module are electrically connected with the identification module; the method comprises the following steps: setting a user information database; when the user uses the identification module to identify the identity, whether the user is recorded in the user information database is judged: if the user is not in the user information database, the user distinguishing prompt lamp band lights up to alarm to remind the user, and the voice alarm module carries out voice alarm to remind the user.
The invention is further provided that the catering vending machine is also provided with a display screen; the display screen is electrically connected with the identification module; the prompting method for the catering vending machine further comprises the following steps: when a new user joins the user information database, marking the user as a new user; when a user marked as a new user first uses the catering vending machine, the display screen displays a new user reminder.
The invention is further provided with a user operation prompting lamp, a main control module for operating the catering vending machine and a weighing module for weighing the weight of the commodity, wherein the catering vending machine is also provided with the user operation prompting lamp; the user operation prompting lamp and the weighing module are electrically connected with the main control module; the main control module is electrically connected with the identification module; when the user does not identify and the weight value of the current commodity weighed by the weighing module is unstable, the user operates the prompting lamp to light up to remind the user; and when the user identity identification is successful, the user operation prompting lamp is turned on to remind the user.
The invention is further set that when the main control module is disconnected with the background, the user operation prompting lamp is turned on to remind the user, and the voice warning module reminds the user by voice.
The invention is further set that when the user presses the scales when getting meals, the user operates the prompting lamp to light up to remind the user, and the voice warning module reminds the user by voice.
The invention is further set as the following method for judging whether the weight value of the current commodity is stable: setting a stability threshold; when a user identifies, acquiring weight values of m current commodities; calculating the standard deviation of the weight values of the m current commodities, and recording the standard deviation as S3; and if the weight value of the current commodity is less than or equal to the stable threshold value, judging that the weight value of the current commodity is stable.
The invention further sets up that the method for judging the user pressure scale comprises the following steps: p1, setting the initial weight value of the commodity as X; setting the residual weight value of the commodity taken by the user as Y and the consumption weight value of the user as Z; acquiring an initial weight value X of a commodity; acquiring user information; p2, recording the weight value of the commodity in real time; p3, if the weight value of the recorded commodity is less than or equal to X, determining that the dish is normally picked; when the user leaves, acquiring the remaining weight value Y at the moment, and executing the step P5; p4, if the recorded weight value of the commodity is larger than X, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2; and P5, uploading order data, and calculating the consumption weight value Z of the user.
The invention further provides that in step P1, a corresponding weight threshold is set for each commodity, and the weight threshold is recorded as a; if the recorded weight value of the commodity is larger than X + A, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2.
The invention further provides that, in step P1, a pressure balance time is set; and if the recorded weight value of the commodity is larger than X, timing is started, if the timing exceeds the pressure scale time, the pressure scale behavior is judged to exist, an alarm is given to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then the step P2 is executed.
The invention has the beneficial effects that: the prompt lamp strip and the voice alarm module are distinguished by the user, and when foreign people use the catering vending machine, the user and related people can be reminded of processing timely.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is a flow chart of a method for determining a user's ballast weight according to the present invention;
FIG. 2 is a flow chart of a method of obtaining a residual weight value Y of the present invention;
FIG. 3 is a flow chart of a method of obtaining an initial weight value X of the present invention;
FIG. 4 is a flow chart of a method of background correction of the present invention;
FIG. 5 is a schematic view of the food and beverage merchandiser of the present invention;
FIG. 6 is a schematic view of another perspective of the vending machine of the present invention;
description of the drawings: 1-food and beverage vending machine; 21-a weighing module; 22-an identification module; 23-a master control module; 24-a display screen; 45-a user operates a warning light; 46-a user distinguishing prompt light strip; 47-voice warning module.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
As shown in fig. 5-6, the prompting method for a food and beverage vending machine according to the embodiment includes a food and beverage vending machine 1; the catering vending machine 1 is provided with a user distinguishing prompt lamp strip 46, a voice alarm module 47 and an identification module 22 for identifying a user; the user distinguishing prompt lamp strip 46 and the voice alarm module 47 are electrically connected with the identification module 22; the method comprises the following steps: setting a user information database; when the user uses the identification module 22 to identify, whether the user is recorded in the user information database is judged: if the user is not in the user information database, the user distinguishing prompt lamp strip 46 is turned on to alarm and remind the user, and the voice alarm module 47 gives a voice alarm and reminds the user.
Specifically, the user identification may be to bind the user information with a recognition device commonly found in the market, and the user may be to bind with the recognition device by any one of wechat binding, code scanning binding, face recognition and ID card binding. When the user places the identification device on the identification module 22, the user can be identified, and thus user information is obtained; the identification means may be an ID card or the like; the identification module 22 may be an identification module 22 with a radio frequency transceiver module, such as a card reader, etc., which is commonly found in the market, or an image identification module 22, such as a camera, etc., which can identify the user identity, and is not limited. The weight of the commodity can be recorded by adopting weighing modules 21 such as common electronic scales on the market, the weighing function can be realized, and the structure of the weighing module is not limited. The invention can be applied to dining halls or restaurants for users to order dishes by themselves, and the identification device can be arranged on the tray, so that the user can obtain the identity of the user when the user places the tray on the identification module 22. The voice warning module 47 may be a common voice chip or the like, and certain voice packets are stored therein, so that the function of voice broadcasting can be realized, the structure of the voice warning module is not limited, and the user information database may exist in the background.
By arranging the user information database, the user distinguishing prompt lamp strip 46 and the voice alarm module 47, when the current user is identified not to be in the user information database, the user can be reminded in time through the functions of light and voice reminding, and an administrator can be attracted to process as soon as possible. Meanwhile, by setting the user information database, the user using the unmanned vending machine can be managed, external personnel without health registration can be prevented from using the unmanned vending machine, and the dining health guarantee degree is improved.
As shown in fig. 5-6, the catering vending machine 1 is further provided with a display screen 24; the display screen 24 is electrically connected with the identification module 22; the prompting method for the catering vending machine further comprises the following steps: when a new user joins the user information database, marking the user as a new user; when a user marked as a new user first uses the catering vending machine, the display screen displays a new user reminder.
The new user reminding is to remind the user of the specific operation steps, and by arranging the display screen 24, the new user can remind the user of the specific operation steps in the mode of the display screen 24 when using the food and beverage vending machine 1, so that the new user can use the food and beverage vending machine as soon as possible; in addition, the new user mark of the new user can be removed after the new user uses the catering vending machine 1 for three times, so that the subsequent operation steps of the user are simplified. In addition, the display screen 24 can also be used for displaying information such as the current weight value of the commodity, user information, consumption amount and the like, and various information can be displayed by setting the display screen 24, so that the process of using the unmanned vending machine by a user is simple and clear. Specifically, when a new user uses the device, the user distinguishes the purple light on the prompt lamp strip 46, so that the administrator can find that the new user uses the device in time.
As shown in fig. 5-6, in the prompting method for a food and beverage vending machine according to this embodiment, a user operation prompting lamp 45, a main control module 23 for operating the food and beverage vending machine, and a weighing module 21 for weighing a weight of a product are further disposed on the food and beverage vending machine 1; the user operation prompting lamp 45 and the weighing module 21 are both electrically connected with the main control module 23; the main control module 23 is electrically connected with the identification module 22; when the user does not identify and the weight value of the current commodity weighed by the weighing module 21 is unstable, the user operates the indicator lamp 45 to light up to remind the user; when the user identification is successful, the user operation indicator lamp 45 is turned on to remind the user.
The commodity can be placed on weighing module 21, and weighing module 21 can adopt weighing modules 21 such as the electronic scales commonly used on the market, can realize the function of weighing, does not restrict its structure. When the user does not perform identity recognition, the user can be reminded of performing the identity recognition in time, and the user operation prompt lamp 45 can be enabled to light the red light to remind the user; in the process of identifying the user identity, the user operation prompting lamp 45 can be turned on to remind the user; when the user identification is successful, the user operation prompting lamp 45 is turned on to remind the user. In addition, if the identified user is a new user, the user operation prompting lamp 45 is turned on to remind the user.
As shown in fig. 5 to 6, in the prompting method for the catering vending machine according to this embodiment, when the main control module 23 is disconnected from the background, the user operates the prompting lamp 45 to light up to remind the user, and the voice warning module 47 reminds the user with voice.
When the main control module 23 is disconnected from the background, data synchronization may not be performed, which may result in that the user may not get the dishes normally, and the administrator needs to be prompted to process the dishes in time, specifically, when the main control module 23 is disconnected from the background, the user operation indicator 45 is turned on.
As shown in fig. 5 to 6, in the prompting method for the food and beverage vending machine according to the embodiment, when a user presses a scale during taking a food, the user operates the prompting lamp 45 to light up to remind the user, and the voice warning module 47 reminds the user with voice.
When the user has the behavior of pressing the scale, the user can operate the indicator lamp 45 to light the red light to remind the user not to press the scale.
As shown in fig. 1, in the prompting method for a catering vending machine according to this embodiment, the method for determining whether the weight value of the current commodity is stable is as follows: setting a stability threshold; when a user identifies, acquiring weight values of m current commodities; calculating the standard deviation of the weight values of the m current commodities, and recording the standard deviation as S3; and if the weight value of the current commodity is less than or equal to the stable threshold value, judging that the weight value of the current commodity is stable.
Specifically, the stability threshold may be set to 1; whether the fluctuation of the weight values of the m current commodities is too large can be judged through standard deviation operation, so that whether the weight values of the current commodities are stable or not is judged, and whether the current weighing module works normally or not can be judged. If the weight value of the current commodity is judged to be stable, the user operates the prompt lamp 45 to turn on green to remind the user; otherwise, the user operates the indicator lamp 45 to light the purple light to remind the user.
As shown in fig. 1, in the prompting method for a food and beverage vending machine according to this embodiment, the method for determining the user's pressing scale includes: p1, setting the initial weight value of the commodity as X; setting the residual weight value of the commodity taken by the user as Y and the consumption weight value of the user as Z; acquiring an initial weight value X of a commodity; acquiring user information; p2, recording the weight value of the commodity in real time; p3, if the weight value of the recorded commodity is less than or equal to X, determining that the dish is normally picked; when the user leaves, acquiring the remaining weight value Y at the moment, and executing the step P5; p4, if the recorded weight value of the commodity is larger than X, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2; and P5, uploading order data, and calculating the consumption weight value Z of the user.
The method comprises the following steps that goods to be sold are placed on a weighing module 21, the weighing module 21 continuously records the weight of the goods, when a user takes the goods, the weight of the goods recorded by the weighing module 21 is reduced, when the user takes the goods, the user only needs to take an identification device away from an identification module 22, the fact that the user has finished making dishes can be judged, and then according to a formula Z, the weight is Y-X; the weight value of the commodity taken away, namely the consumption weight value Z of the user can be known, then the account is settled for the user, the account settlement process is to calculate the consumption amount of the bill according to the consumption weight value Z of the user and the unit price of the commodity, and the fee is deducted from the account of the user.
In the use of the dining hall, as a small number of users want to reduce or even avoid the situation of paying by increasing the weight value of the remaining commodities: when the user implements the action of the pressure balance, because the weight value for clamping the dishes is small, when the user implements the action of the pressure balance, the weight recorded by the weighing module 21 easily exceeds the initial weight value X, if the recorded weight value of the commodity is larger than X, the action of the pressure balance is judged to exist, the user is warned to warn the user not to need the pressure balance, and when the user stops the action of the pressure balance and normally takes the dishes, the user is paid out again. If the user performs the weighing, the manager is attracted to process the data. Due to the fact that the user information is obtained, a credit file can be set for each user, and when the user has the weighing behavior, the credit file can be recorded in the credit file, so that the user's autonomy of normal dish making is increased.
As shown in fig. 1, in a prompting method for a catering vending machine according to this embodiment, in step P1, a corresponding pressure scale threshold is set for each commodity, and the pressure scale threshold is recorded as a; if the recorded weight value of the commodity is larger than X + A, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2.
Specifically, because the user also can be because outside collision, for example use the ladle to ladle out the condition such as dish when normally taking commodity, lead to the weight value to rise briefly to appear, through setting up the pressure balance threshold value, can effectually avoid the condition of false triggering alarm.
As shown in fig. 1, in a prompting method for a catering vending machine according to the embodiment, in step P1, a pressure balance time is set; and if the recorded weight value of the commodity is larger than X, timing is started, if the timing exceeds the pressure scale time, the pressure scale behavior is judged to exist, an alarm is given to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then the step P2 is executed.
Specifically, because the user is when normally taking commodity, also can be because the outside collision of person, use the ladle to ladle out the condition such as dish, lead to the weight value to rise briefly to appear, if the pressure balance time exceedes the pressure balance time that sets up, show promptly that present does not belong to the clarity of normal use or unexpected collision, take place the alarm, avoid the wrong report of wanting. In practical application, in order to further reduce the false alarm, only when the recorded weight value of the commodity is greater than X + A and the weighing time of the user is greater than the set weighing time, the weighing behavior is judged to exist, and the alarm is given to remind the user. And after alarming, executing a step P2 until the recorded weight value of the commodity is less than or equal to X + A.
As shown in fig. 2, in the prompting method for the catering vending machine according to this embodiment, the method for obtaining the remaining weight value Y includes: j1: setting a buffering time; j2: when the user leaves, timing is started, and a residual weight value Y1 is obtained; j3: at the end of the buffer time, the residual weight value Y2 is again obtained; j4: if Y2 is stable, then Y — Y2; otherwise, judging whether the state when the Y1 is acquired is stable or not, and if the state when the Y1 is acquired is stable, then Y is equal to Y1; if Y1 is not obtained stably, Y is Y2.
In a dining room or a restaurant, the flow rate of people is usually large, and people work too fast when taking goods, which may cause the weight value recorded by the weighing module 21 at that time to be unstable, and cause the weight value Y obtained when the user leaves to be not the final weight value of the remaining goods, so that it is necessary to correct the weight value of the remaining goods. To effectively ensure that the correct weight value of the remaining product is recorded, a buffer time of two seconds may be provided. By confirming whether the state at the time of acquiring Y2 or Y1 is stable, settlement can be accurately performed for the user.
As shown in fig. 2, in the prompting method for a catering vending machine according to this embodiment, the method for determining whether the state is stable when obtaining Y2 or Y1 is as follows: setting a standard deviation threshold; when the user leaves, timing is started, n residual weight values are obtained and are sequentially recorded as Y1 '-Yn'; calculating the standard deviation of Y1'-Yn', and recording the standard deviation as S1; when the buffering time is over, acquiring n residual weight values again, and recording the n residual weight values as Y1 '-Yn'; calculating the standard deviation of Y1 '-Yn'; recording the standard deviation as S2; if S1 is not more than the standard deviation threshold, Y1 is judged to be stable, and Y1 is equal to Yn'; otherwise, judging that Y1 is unstable, and Y1 is Yn'; if S2 is less than or equal to the standard deviation threshold value, Y2 is judged to be stable, and Y2 is equal to Yn; otherwise, Y2 is judged to be unstable, and Y2 ═ Yn ".
The set standard deviation threshold may be set to 1; whether the current weighing module is in a stable state or not can be judged through standard deviation operation.
Specifically, in order to increase the data processing speed, it may be arranged that: acquiring 12 residual weight values within the second that the user leaves, calculating a standard deviation S1 of the 12 residual weight values, and taking the last acquired residual weight value, that is, Yn' as a final value of Y1; similarly, within the last second of the buffering time, 12 remaining weight values are obtained, the standard deviation S2 of the 12 remaining weight values is calculated, and the last obtained remaining weight value, that is, Yn ", is the final value of Y2.
As shown in fig. 3, in the prompting method for the catering vending machine according to this embodiment, the method for obtaining the initial weight value X of the commodity is as follows: h1: detecting and recording the weight value of the commodity; h2: if the weight value of the commodity is changed, acquiring the weight value before the change, and recording the weight value as X1; h3: judging whether the user carries out identity recognition; if the user identifies, the initial weight value X of the commodity is X1, and if the user does not identify, the step H4 is executed; h4: alarming to remind the user, and continuously judging whether the user carries out identity recognition in time; if the user identifies the identity in time, the initial weight value X of the commodity is X1; in step H4, when the user performs identification, the current weight value of the product is obtained, and the weight value is recorded as X2; comparing the size of X1 with X2; if X1 > X2, the initial weight value X of the commercial product is X1, otherwise, the initial weight value X of the commercial product is X2.
When the user takes the commodity first, the commodity can be identified, so that the user is immediately warned to be reminded of placing the identification device in the identification area quickly for identification, meanwhile, the conscious user can timely place the commodity back to the original position, the weight value of the commodity is the same as the initial value, namely the weight value is the same as the X1 value, after the user identifies the identity in time, the alarm is not given any more, and the user normally takes the meal and settles the amount of money. If the user does not identify in time or does not identify with the intention, the user can attract the nearby administrator to process.
After the user normally takes the account, calculating the consumption weight value of the user, and settling accounts for the user, wherein the process of settling accounts is to calculate the consumption amount of the bill according to the consumption weight value of the user and the unit price of the commodity, and deducting the fee from the account of the user.
When the user took commodity earlier, then in time placed identity information, but did not put the commodity back in place, will equally lead to initial weight value and actual initial weight value inconsistent, can lead to the amount of money paid and the amount of money that pays not corresponding, consequently, adopted and compared X2 and X1 value, ensured to have adopted suitable initial weight value: when the weight obtained when the user places the identity recognition is smaller than the weight value before the weight change, which indicates that the user does not put the commodity back in place, the weight value before the weight change X1 should be adopted; if the weight obtained when the user places the identification is greater than or equal to the weight value before the weight change, the current weight value X2 is used for calculation.
As shown in fig. 4, in step P5, after the fee is deducted from the account of the user, the method for performing background correction on the fee deduction value is as follows: q1: after the first single user takes the meal and leaves, deducting the fee from the first single user account; q2: the second single user performs identity recognition to obtain an initial weight value P of the single commodity; q3: comparing the initial weight value P of the commodity in the second order with the residual weight value Y in the first order; if P is more than Y, judging that the fee is required to be refunded, and correcting the consumption weight value in the first bill: and Z is X-P, and the user A is settled again; if P is Y, then do not process.
In actual use, a clip for clamping the commodity is placed on the commodity, if the first individual user forgets to put the clip back on the commodity after taking the commodity, but the data is uploaded at the moment, that is, the weight value of the clip is also counted into the consumption weight of the first individual user, then the consumption amount of the first individual user is larger than the amount to be settled, and the money needs to be returned to the first individual user. The first single user only needs to put the clamp back to the original position, and then the second single user normally uses the clamp; and detecting that the initial weight value of the second single user is inconsistent with the residual weight value of the previous single user, so that account settlement needs to be carried out for the first single user again, wherein the mode of carrying out account settlement for the first single user is that the weight value Z of the commodity consumed by the user is recalculated, the amount of money to be consumed is calculated according to the weight value Z of the commodity consumed by the first single user and the unit price of the commodity, the amount of money which is deducted by the first single user is subtracted from the amount of money, and the deducted amount of money is returned to the account of the first single user.
As shown in fig. 4, in the prompting method for the catering vending machine according to the embodiment, in step Q1, a transaction interval time is preset; in step Q3, acquiring the transaction time difference between the two bills, and recording the time as h; if P is more than Y and h is less than or equal to the transaction interval time, judging that fee withdrawal processing is needed, and correcting the consumption weight value in the first bill: z is X-P, and the settlement is carried out for the first single user again; a replenishment value is preset in step Q1; in step Q3, if P > Y and the difference between P and Y < the replenishment value, the weight of consumption value in the first order is corrected: and Z is X-P, and the first single user is settled again.
If the interval between the two lists exceeds the interval time, the situation of replenishing commodities may exist, or the situation that the two adjacent lists respectively come from lunch and dinner causes inaccurate data, so that the occurrence of the situation can be effectively avoided by setting the interval time. Specifically, the interval time may be set to 120 seconds or 180 seconds, which is enough for the user to eat the meal normally once. When the goods are restocked, the value of P is also larger than the value of Y, so that it is necessary to set the restocking value to avoid incorrect refund to the user and damage to the benefit of the seller. Specifically, the restocking value may be set to 1000 g.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (9)
1. A prompting method for a catering vending machine is characterized in that: comprising a catering vending machine (1); the catering vending machine (1) is provided with a user distinguishing prompt lamp strip (46), a voice alarm module (47) and an identification module (22) for identifying a user; the user distinguishing prompt lamp strip (46) and the voice alarm module (47) are electrically connected with the identification module (22);
the method comprises the following steps:
setting a user information database;
when the user uses the identification module (22) to identify, whether the user is recorded in the user information database is judged:
if the user is not in the user information database, the user distinguishing prompt lamp strip (46) lights up an alarm to remind the user, and the voice alarm module (47) carries out voice alarm to remind the user.
2. A prompting method for catering vending machine according to claim 1, characterized in that: the catering vending machine (1) is also provided with a display screen (24); the display screen (24) is electrically connected with the identification module (22);
the prompting method for the catering vending machine further comprises the following steps:
when a new user joins the user information database, marking the user as a new user;
the display screen (24) displays a new user alert when a user marked as a new user first uses the catering vending machine (1).
3. A prompting method for catering vending machine according to claim 1, characterized in that: the catering vending machine (1) is also provided with a user operation prompt lamp (45), a main control module (23) for operating the catering vending machine and a weighing module (21) for weighing the weight of commodities; the user operation prompting lamp (45) and the weighing module (21) are electrically connected with the main control module (23); the main control module (23) is electrically connected with the identification module (22);
when the user does not identify and the weight value of the current commodity weighed by the weighing module (21) is unstable, the user operates the prompt lamp (45) to light up to remind the user;
when the user identification is successful, the user operation prompting lamp (45) is turned on to remind the user.
4. A prompting method for catering vending machine according to claim 3, characterized in that: when the main control module (23) is disconnected with the background, the user operation prompting lamp (45) is turned on to remind the user, and meanwhile the voice warning module (47) reminds the user in a voice mode.
5. A prompting method for catering vending machine according to claim 3, characterized in that: when the user presses the scales when taking meals, the user operates the prompting lamp (45) to light up to remind the user, and meanwhile the voice warning module (47) reminds the user in a voice mode.
6. A prompting method for catering vending machine according to claim 3, characterized in that: the method for judging whether the weight value of the current commodity is stable comprises the following steps:
setting a stability threshold;
when a user identifies, acquiring weight values of m current commodities;
calculating the standard deviation of the weight values of the m current commodities, and recording the standard deviation as S3; and if the weight value of the current commodity is less than or equal to the stable threshold value, judging that the weight value of the current commodity is stable.
7. A prompting method for catering vending machine according to claim 5, characterized in that: the method for judging the user weighing comprises the following steps:
p1, setting the initial weight value of the commodity as X; setting the residual weight value of the commodity taken by the user as Y and the consumption weight value of the user as Z; acquiring an initial weight value X of a commodity; acquiring user information;
p2, recording the weight value of the commodity in real time;
p3, if the weight value of the recorded commodity is less than or equal to X, determining that the dish is normally picked; when the user leaves, acquiring the remaining weight value Y at the moment, and executing the step P5;
p4, if the recorded weight value of the commodity is larger than X, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2;
and P5, uploading order data, and calculating the consumption weight value Z of the user.
8. A prompting method for catering vending machine according to claim 7, characterized in that: in step P1, a corresponding weight threshold is set for each item, and the weight threshold is recorded as a;
if the recorded weight value of the commodity is larger than X + A, judging that the pressure balance behavior exists, alarming to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then executing a step P2.
9. A prompting method for catering vending machine according to claim 7, characterized in that: in step P1, a pressure scale time is set;
and if the recorded weight value of the commodity is larger than X, timing is started, if the timing exceeds the pressure scale time, the pressure scale behavior is judged to exist, an alarm is given to remind a user until the recorded weight value of the commodity is smaller than or equal to X, and then the step P2 is executed.
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