WO2018209952A1 - 一种自助减量称重计费系统及自助减量称重计费方法 - Google Patents

一种自助减量称重计费系统及自助减量称重计费方法 Download PDF

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Publication number
WO2018209952A1
WO2018209952A1 PCT/CN2017/117800 CN2017117800W WO2018209952A1 WO 2018209952 A1 WO2018209952 A1 WO 2018209952A1 CN 2017117800 W CN2017117800 W CN 2017117800W WO 2018209952 A1 WO2018209952 A1 WO 2018209952A1
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Prior art keywords
information
module
weight
weighing
stock
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PCT/CN2017/117800
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English (en)
French (fr)
Inventor
王军
高歌
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西安睿翊餐饮管理有限公司
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Publication of WO2018209952A1 publication Critical patent/WO2018209952A1/zh

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G07G1/12—Cash registers electronically operated
    • G07G1/14—Systems including one or more distant stations co-operating with a central processing unit
    • G07G1/145—PLU-management
    • 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
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/60—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to nutrition control, e.g. diets

Definitions

  • the invention relates to a weight reduction weighing technology, in particular to a self-service reduction weighing and billing system and a self-service reduction weighing and charging method.
  • the existing canteen catering sales system includes a POS POS machine with a keyboard input and a POS accounting management server, which mainly realizes the electronic deduction fee and records the consumption amount.
  • the usage process is as follows: the user selects the variety and number of meals (or the number) of the meal, and the salesman manually calculates the total amount of the charge according to the variety and quantity, and types the amount on the keypad of the POS machine for sale, the user After the card is swiped on the POS machine, the automatic deduction is realized, and the POS machine sends the information such as the deduction amount to the POS accounting management server by wire.
  • the defects of the system are mainly as follows: First, the system obtains detailed consumption data such as the variety and quantity of meals. Since the system only records the consumption information of the total deduction, there is no information on the variety and quantity of the foods sold, so detailed data on the variety and quantity of the products cannot be provided, and relevant data analysis cannot be performed. Second, the system cannot provide means of sales that match the price. The traditional manual rice cooking mode, the amount of a meal depends entirely on the manual experience, the difference in the amount of each meal, but the price is the same, consumers have opinions. Third, the system cannot solve the problem of eating unsaturated waste. Because each person's meal is different according to the share or the sale, the phenomenon that some people can't finish the whole meal and some people don't eat enough can not meet the actual needs of consumers, and it is easy to cause waste.
  • the applicant has previously proposed a patent for a catering self-service weighing sales management system, which solves the problems in the prior art to a certain extent, but the intelligence of the catering self-service weighing sales management system
  • the level of automation and automation is low. For example, it is unable to edit the product variety and unit price information through the database management system. Especially when it is applicable to multiple food varieties, the level of intelligence is very low, and it is impossible to judge intelligently whether the weight of the goods sold is valid.
  • the invention is based on the above prior art problem, and proposes a novel self-service reduction weighing and billing system and a self-service reduction weighing and charging method based on the system, the system is highly systematic, integrated and intelligent.
  • the weight loss weighing and out-of-stock alarm unit to detect and generate the weight information of the goods sold in real time
  • the information processing and transmission unit to generate the price information of the goods sold in real time
  • the two are organically combined and highly intelligent, when the billing ends.
  • the intelligent out-of-stock judgment is made to ensure that the remaining goods are recharged in real time after each consumption behavior.
  • the symmetric weight reference is updated to ensure the accuracy of the weight loss weighing.
  • the self-service reduction weighing and billing system and the self-service reduction weighing and charging method of the invention have broader application prospects .
  • a self-service reduction weighing and billing system comprising a weight reduction weighing and out-of-stock alarm unit and an information processing and transmission unit, wherein the weight reduction and out-of-stock alarm unit is in communication with the information processing and transmission unit,
  • the weight loss weighing and out-of-stock alarm unit automatically calculates the weight information of the sold goods by the weight reduction weighing method, and transmits the sales item weight information to the information processing and transmission unit after determining that it is valid, the information
  • the processing and transmission unit automatically calculates the price information of the sold goods based on the weight information of the sold goods provided by the reduced weighing and out of stock alarm unit.
  • the self-decreasing weighing and billing system wherein the reduced weighing and out of stock alarm unit obtains the sold by subtracting the remaining weight of the previous item from the remaining weight of the current item The weight information of the goods, and comparing the weight information of the sold goods with the preset reference parameter data for weighing calculation to determine whether the weight information of the sold goods is valid, and if valid, transmitting the weight information of the sold goods to the
  • the information processing and transmission unit simultaneously updates the remaining weight of the previous item to the current remaining weight of the item, and the reference parameter data for the weighing calculation includes a normal weight fluctuation value;
  • the reduction weighing and out of stock alarm unit is compared by The current product remaining weight and the preset out-of-stock alarm threshold weight are subjected to out-of-stock determination and alarm processing;
  • the information processing and transmission unit obtains the multiplication operation by multiplying the sold product weight information and the corresponding item unit price information Selling product price information;
  • the information processing and transmission unit is also capable of receiving user input replenishment operation information, and The
  • the self-service reduction weighing and billing system wherein the information processing and transmission unit is connected to a billing settlement unit and a database management system; and the information processing and transmission unit is to the billing and settlement unit Sending the sales price information; the billing settlement unit returns the billing end information to the information processing and transmission unit after completing the fee settlement, and the information processing and transmission unit sends the billing end information to the Decrementing the weighing and out of stock alarm unit, the decrement weighing and out of stock alarm unit performs out of stock determination and alarm processing after receiving the above billing end information; the database management system processes and transmits the information to the information The unit sends the reference parameter data for weighing calculation, the out-of-stock alarm threshold weight, the item type and the unit price information, and the information processing and transmission unit sends the weighing parameter reference parameter data and the out-of-stock alarm threshold weight to The weight loss weighing and out of stock alarm unit; the information processing and transmission unit sends the price information of the sold goods to the billing and settlement unit Consumer goods information, and transmits
  • the self-decreasing weighing and billing system wherein the reduced weighing and out of stock alarm unit comprises a decrement calculation and out of stock detection module, an alarm module, a weighing module, a communication module, and a storage a module, the decrement calculation and out of stock detection module are respectively connected to the weighing module, the storage module, the alarm module and the communication module; the weighing module transmits the weight of the weighed product to the decrement in real time a calculation and stock-out detection module; the storage module is provided with a previous item remaining weight storage sub-unit, a current item remaining weight storage sub-unit, a weighing calculation reference parameter data storage sub-unit, and a stock-out alarm threshold weight storage unit The unit is respectively configured to store the remaining weight of the previous item, the remaining weight of the current item, the reference parameter data for the weighing calculation, and the weight of the out-of-stock alarm threshold; the alarm module calculates the out-of-stock alarm sent by the out-of-stock detection module according to
  • the decrement calculation and out-of-stock detection module receives, by the communication module, reference parameter data for weighing calculation transmitted by an information processing and transmission unit,
  • the out-of-stock alarm threshold weight, the billing end information, and the replenishment operation information, and the weighing calculation reference parameter data and the stock-out alarm threshold weight are respectively stored in the storage module's weighing calculation reference parameter data storage sub-memory The unit and the stock-out alarm threshold weight storage sub-unit;
  • the decrement calculation and stock-out detection module receives the current product residual weight transmitted by the weighing module in real time, and stores it in the current weight of the storage module In the storage subunit, the decrement calculation and out of stock detection module obtains the weight information of the sold item by subtracting the remaining weight of the previous item stored in the storage module from the remaining weight of the current item, and comparing whether the weight of the sold item is More than the normal weight fluctuation value included in the reference parameter data for weighing calculation, if it is greater
  • the decrement calculation and the out of stock detection module receiving the end of the charging After the information, whether the remaining weight of the current goods stored in the storage module is less than or equal to the weight of the out-of-stock alarm threshold, if yes, the stock-out alarm module generates a stock-out alarm signal and transmits it to the alarm module for an out-of-stock alarm prompt; After receiving the replenishment operation information transmitted by the information processing and transmission unit, the decrement calculation and out of stock detection module updates the remaining weight of the previous item stored in the storage module to the latest product detected by the weighing module after replenishment. Remaining weight.
  • the self-service reduction weighing and billing system comprises an information processing module, a display module, an operation button module, a memory, a button operation prompting module, a first communication module, and a a communication module;
  • the information processing module is respectively connected to the first communication module, the second communication module, the display module, the operation button module, the memory and the button operation prompting module;
  • the first communication module is configured to implement the information a communication connection between the processing and transmission unit and the reduced weighing and out of stock alarm unit,
  • the second communication module is configured to implement a communication connection between the information processing and transmission unit and the database management system;
  • the information processing module passes The second communication module acquires the reference parameter data for weighing calculation provided by the database management system, the weight of the out-of-stock alarm threshold, the item type and the unit price information, and the reference parameter data for the weighing calculation and the out-of-stock alarm threshold weight.
  • the information processing module receives the sales item weight information from the reduced weighing and out of stock alarm unit by the first communication module, and stores the item quantity from the memory And obtaining the unit price information corresponding to the sold product category in the unit price information, multiplying the sold product unit price information and the sold product weight information to obtain the sold product price information, and transmitting the same to the billing settlement unit, After the billing and settlement unit completes the fee settlement, the billing end information is returned to the information processing module, and the information processing module transmits the billing end information to the decrement weighing and out of stock alarm through the first communication module.
  • the operation button module is configured to input replenishment operation information by the user, and the information processing module receives the operation button module After the replenishment operation information is transmitted, a replenishment operation completion signal is generated and output to the button operation prompting module.
  • the replenishment operation information is transmitted to the alarm unit decrement weighing and out through the first communication module.
  • the self-service reduction weighing and billing system includes a plurality of reduced weighing and out-of-stock alarm units for different goods, each of which is used for weighing and out-of-stock alarm units.
  • the sales item type corresponds to consistent unit price information.
  • the self-service reduction weighing and billing system wherein the decrement calculation and out-of-stock detection module and information processing module adopt an embedded microcontroller chip, and the weighing module adopts strain resistance resistance sensing a weight detector, the display module adopts an LCD display, the storage module and the memory adopt a non-volatile memory chip, the first communication module adopts a serial communication standard, and the second communication module adopts wireless WiFi or wired ether Network communication standard.
  • a self-service reduction weighing and charging method based on the self-service reduction weighing and billing system of the present invention comprises the following steps:
  • the information processing module of the unit transmits the replenishment operation information to the decrement calculation and out of stock detection module in the reduced weighing and out of stock alarm unit, and the decrement calculation and the out of stock detection module receive the replenishment operation information
  • the current product remaining weight and the previous product remaining weight stored in the storage module in the weight loss weighing and out-of-stock alarm unit are simultaneously updated to the latest weight of the current product transmitted by the weighing module;
  • the decrement calculation and out of stock detection module receives and stores the current product residual weight transmitted by the weighing module in real time, and then subtracts the stored previous product remaining weight from the current product remaining weight for sale.
  • the shipment weight information is then compared with the pre-stored weighing calculation reference parameter data and the shipment weight information to determine whether the shipment weight information is valid, and if valid, the sales shipment weight information is transmitted to the
  • the information processing module simultaneously updates the remaining weight of the previous item to the remaining weight of the current item, and if not, does not perform data transmission;
  • the information processing module receives the weight loss calculation and the sales and shipment weight information transmitted by the out of stock detection module, and extracts and sells the goods from the item type and unit price information stored in the memory of the information processing and transmission unit.
  • the unit price information corresponding to the variety, and multiplying the unit price information and the weight information of the sold goods to obtain the price information of the sold goods, and then transmitting the price information of the sold goods to the billing and settlement unit for settlement of the fee, and processing by the information
  • the module generates the goods consumption information, and transmits the goods consumption information to the database management system and the memory and display module in the information processing and transmission unit;
  • the billing and settlement unit performs fee settlement based on the price information of the sold goods provided by the information processing module, and returns the billing end information to the information processing module after the fee settlement is completed; the information processing module will The billing end information is transmitted to the decrement calculation and out of stock detection module in the decrement weighing and out of stock alarm unit;
  • the decrement calculation and out-of-stock detection module compares the current product residual weight and the out-of-stock alarm threshold weight stored in the storage module after receiving the billing end information, if the current product residual weight value is less than or equal to the missing The cargo alarm threshold weight, the out-of-stock alarm signal is generated and transmitted to the alarm module for the stock-out alarm prompt, otherwise the steps (3) to (6) are executed cyclically;
  • Steps (2) to (6) are cyclically executed when the user performs the replenishment operation.
  • the self-service reduction weighing and billing system of the present invention is highly systematic, integrated and intelligent, and based on the weight reduction weighing and out-of-stock alarm unit, real-time detection and generation of sales and shipment weight information, based on information processing And the transmission unit generates the price information of the products for sale and delivery in real time.
  • the two are combined organically and highly intelligently.
  • the stock-out is judged to ensure that the remaining goods are recharged in real time after each consumption behavior.
  • the symmetrical weight basis is updated to ensure the accuracy of weight loss weighing.
  • weight loss weighing occurs, it is scientifically judged whether the weight loss is effective, and the level of intelligence is improved.
  • the production of goods consumption information in order to facilitate the analysis and statistics based on big data, has a broader application prospects.
  • the self-service reduction weighing and billing system and the self-service reduction weighing and charging method according to the invention can greatly reduce the labor cost, and no manual intervention by the management personnel is required in the whole self-service sales process. Consumers complete the self-service.
  • the self-service reduction weighing and billing system of the invention integrates the functions of self-service pick-up, automatic weighing, automatic pricing, out-of-stock alarm, etc., realizes on-demand access, charge according to quantity, and solves waste of goods. It guarantees fair sales and overcomes the problems of mis-input and low efficiency caused by traditional manual input consumption.
  • the self-service reduction weighing and billing system of the present invention can generate detailed records, and provides clear data for further scientific management, sales analysis, and personal healthy diet nutrition analysis, and the development trend of composite big data.
  • the self-service reduction weighing and billing system of the invention has very practical use value in various technical fields such as the catering industry and the retail industry, and the market prospect is very broad.
  • FIG. 1 is a block diagram showing the overall structure of the self-service reduction weighing and billing system of the present invention
  • FIG. 2 is a block diagram showing the structure of a weight reduction weighing and out of stock alarm unit in the self-service reduction weighing and billing system of the present invention
  • FIG. 3 is a block diagram showing the structure of an information processing and transmission unit in the self-service reduction weighing and billing system of the present invention
  • 21-Information Processing Module 22-Display Module, 23-Operation Button Module, 24-Memory, 25-Key Operation Prompt Module, 26-First Communication Module, 27-Second Communication Module.
  • the invention provides a self-service reduction weighing and billing system and a weighing and charging method thereof.
  • the self-service reduction weighing and billing system as a whole comprises a weight reduction weighing and out of stock alarm unit 10 and an information processing and transmission unit 20 The two units are connected by a communication line.
  • the self-service reduction weighing billing system performs information transmission with the database management system 30 via a wired or wireless network.
  • the weight loss weighing and out-of-stock alarm unit 10 is configured to weigh the remaining weight of the goods, calculate the sales and shipment weight information by the weight reduction calculation method, and transmit the information to the information processing and transmission unit 20;
  • the heavy and out of stock alarm unit 10 can also compare the current product remaining weight and the pre-stored out-of-stock alarm threshold weight, and perform a stock-out alarm processing based on the comparison result; at the same time, the weight-reducing weighing and out-of-stock alarm unit 10 can also receive the The reference parameter data for weighing calculation transmitted by the information processing and transmission unit 20, the out-of-stock alarm threshold weight, the billing end information, and the replenishment operation information, the received reference parameter data for weighing calculation and the stock-out alarm valve
  • the value weight is stored and processed, and after the receipt of the billing end information, the out-of-stock judgment and the alarm processing are performed, and after the replenishment operation information is received, the remaining weight of the current item and the remaining weight of the previous item are initialized.
  • the information processing and transmission unit 20 is configured to acquire the reference parameter data for weighing calculation, the weight of the out-of-stock alarm threshold, the item type and the unit price information from the database management system 30, and use the reference parameter data for the weighing calculation and the out-of-stock alarm.
  • the threshold weight is transmitted to the reduced weighing and out of stock alarm unit 10; at the same time, the information processing and transmission unit 20 can receive the weight information of the sold goods from the reduced weighing and out of stock alarm unit 10, and automatically calculates
  • the price of the sold product is transmitted to the billing and settlement unit for settlement, and the billing end information returned by the billing and settlement unit is transmitted to the reduced weighing and out of stock alarm unit 10, and the sold item type and unit price are sold.
  • the goods consumption information such as weight, price, etc.
  • the goods consumption information is transmitted to the database management system 30; the information processing and transmission unit 20 is also capable of receiving the replenishment operation information input by the operator through the button, and replenishing the goods.
  • the operational information is transmitted to the reduced weighing and out of stock alarm unit 10.
  • the weight reduction and out of stock alarm unit 10 includes a decrement calculation and out of stock detection module 11, an alarm module 12, a weighing module 13, a communication module 14, and a storage module 15;
  • the stock-out detection module 11 is respectively connected to the weighing module 13, the storage module 15, the alarm module 12, and the communication module 14; the communication module 14 establishes a communication connection with the information processing and transmission unit 20.
  • the weighing module 13 is configured to weigh the remaining weight of the goods in real time and transmit it to the decrement calculation and out of stock detection module 11;
  • the storage module 15 is provided with a previous item remaining weight storage subunit, and currently The remaining product storage subunit, the reference parameter data storage subunit for weighing calculation, and the stockout alarm threshold weight storage subunit are respectively used for storing the remaining weight of the previous item, the remaining weight of the current item, and the reference parameter data for weighing calculation.
  • the alarm module 12 sends an alarm prompt in a voice (or buzzer) manner according to the decrement calculation and the out-of-stock alarm information sent by the out-of-stock detection module 11;
  • the communication module 14 is used to implement The communication connection between the weighing and out of stock alarm unit 10 and the information processing and transmission unit 20 is reduced, and the specific communication module 14 realizes the decrement calculation and the out of stock detection module 11 by adopting an interface conforming to the wired serial communication standard.
  • the decrement calculation and out of stock detection module 11 serves as a core processing module in the decrement weighing and out of stock alarm unit 10, specifically the following processing function: the decrement calculation and out of stock detection module 11 through the communication
  • the module 14 receives the reference parameter data for weighing calculation transmitted by the information processing and transmission unit 20, the out-of-stock alarm threshold weight, the billing end information, and the replenishment operation information, and uses the reference parameter data for the weighing calculation.
  • the stock-out alarm threshold weight are respectively stored in the weighing parameter calculation reference parameter data storage subunit and the stock-out alarm threshold weight storage sub-unit of the storage module 15; the decrement calculation and the stock-out detection module 11 receive the real-time receiving unit
  • the remaining weight of the current goods transmitted by the weighing module 13 is stored in the current goods remaining weight storage subunit of the storage module 15; in the weight initializing operation, the decrement calculation and out of stock detection module 11 will weigh
  • the remaining weight of the current item transmitted by the module 13 is simultaneously stored in the current item remaining weight storage subunit of the storage module 15 and the previous item remaining weight storage subunit.
  • the remaining weight of the current item stored in the storage module 15 is the same as the remaining weight of the previous item in the weight initializing operation; the decrement calculation and out of stock detection module 11 passes the remaining weight of the previous item stored in the storage module 15 and The current product remaining weight is subtracted and calculated to obtain the sold product weight information; the decrement calculation and out of stock detection module 11 calculates the weight of the sold goods at each time, and at the same time, the weight of the sold goods is confirmed and confirmed.
  • the sales item weight information is compared with the weighing calculation reference parameter data prestored in the storage module 15 to determine whether the sold item weight is valid, and the weighing calculation reference parameter data preferably includes the lowest sold weight.
  • the information processing and transmission unit 20 transmits the sales and shipment weight information, if the decrement calculation and out of stock detection module 11 calculates If the obtained shipment weight information is less than or equal to the minimum sold weight reference, the weight difference measured by the weighing module 13 may be a normal quality error, and no actual consumption occurs, such as the weighing module 13 is used for weighing. In the case of meals, the weight of the dish spoon must be considered, and the weight change caused by the dish spoon cannot be used for consumption billing.
  • the reduction calculation and The stock-out detection module 11 determines that the weight of the sold goods is invalid, and does not perform data transmission; the reduction calculation and stock-out detection module 11 determines that the weight of the sold goods is valid, and transmits the weight information of the sold goods to the information processing and transmission unit 20. After that, the remaining weight of the previous previous item is updated to the current remaining weight of the item, and the specific calculation and the out of stock detection module 11 calculates the current weight of the sold item and determines that it is valid, and reads the current current in the storage module.
  • the remaining weight information of the current item stored in the remaining weight storage subunit, and stored in the previous item remaining weight storage sub-order The remaining goods to the previous weight updating the current remaining weight goods.
  • the decrement calculation and out of stock detection module 11 also performs out of stock judgment and alarm processing, and the specific decrement calculation and out of stock detection module 11 reads the current product residual weight and out of stock alarm valve stored in the storage module 15 The weight is calculated, and the current product residual weight and the out-of-stock alarm threshold weight are compared. If the current product residual weight is less than or equal to the out-of-stock alarm threshold weight, the decrement calculation and out-of-stock detection module 11 generates an out-of-stock alarm.
  • the control information is transmitted to the alarm module 12, and the alarm module 12 performs a stock-out alarm prompt by voice or buzzer, etc., and the preferred reduction calculation and stock-out detection module 11 is used to reduce the weighing scale at each time.
  • the stock-out determination is performed, that is, the amount-of-deduction calculation and stock-out detection module 11 performs the above-mentioned stock-out determination processing after receiving the billing end information returned by the information processing and transmission unit 20, thereby ensuring the reduction.
  • the calculation and out of stock detection module 11 can timely know whether the goods in the weighing container are sufficient, and the weight of the out-of-stock alarm threshold can be different according to different types of goods. set up.
  • the weight initialization operation is performed, that is, the current product remaining weight stored in the storage module and the previous product remaining weight are simultaneously
  • the current weight of the current product detected by the weighing module 13 at this time (after replenishment) is updated to ensure that the weighing calculation can be re-calculated based on the new weight of the replenished product after each replenishment operation is completed.
  • the above describes the composition of the weight reduction and out of stock alarm unit 10 and the operation of each functional module in the present invention.
  • the specific structure and operation of the information processing and transmission unit 20 in the present invention will be specifically described below.
  • the information processing and transmission unit 20 includes an information processing module 21, a display module 22, an operation button module 23, a memory 24, a button operation prompting module 25, a first communication module 26, and a second communication module 27; the information processing module 21
  • the first communication module 26, the second communication module 27, the display module 22, the operation button module 23, the memory 24, and the button operation prompting module 25 are respectively connected.
  • the first communication module 26 is communicatively coupled to the communication module 14 in the reduced weighing and out of stock alarm unit 10, and the second communication module 27 is in communication with the database management system 30, preferably the first A communication module 26 performs serial communication using an interface conforming to the wired serial communication standard and the communication module 14 in the reduced weighing and out of stock alarm unit 10, preferably such as RS-232, RS-485, USB serial
  • the communication standard, preferably the second communication module 27 uses a wireless WiFi (or wired Ethernet) communication method and the database management system 30 for information transmission.
  • the information processing module 21 acquires the reference parameter data for weighing calculation provided by the database management system 30, the out-of-stock alarm threshold weight, the item type and the unit price information by the second communication module 27, and uses the reference for weighing calculation.
  • the parameter data and the out-of-stock alarm threshold weight are transmitted to the reduced weighing and out-of-stock alarm unit 10 through the first communication module 26, and the item variety and unit price information are transmitted to the memory 24;
  • the unit price information includes unit price information corresponding to each item type, the weight loss weighing and out of stock alarm unit 10 provides the information of the sold goods, and the item type and unit price information includes the price corresponding to the item for sale. information.
  • a plurality of reduced weighing and out of stock alarm units 10 may be provided, and each of the reduced weighing and out of stock alarm units 10 corresponds to a kind of goods for providing a sold weight of the goods.
  • a plurality of decrement weighing and out of stock alarm units 10 are respectively connected to the information processing and transmission unit 20, and the information processing and transmission unit 20 can be based on the weight of each decrement weighing and out of stock alarm unit 10, etc.
  • the information is uniquely identified, and the information processing module 21 can search for the unit price information corresponding to the item type that is weighed by the weight loss weighing and out of stock alarm unit 10 from the item type and unit price information stored in the memory 24.
  • the information processing module 21 receives the sales item weight information from the weight reduction and stock-out alarm unit 10 through the first communication module 26, and obtains the item quantity and unit price information pre-stored in the memory 24.
  • the information is transmitted to the billing and settlement unit for fee settlement.
  • the billing and settlement unit is preferably a part of the self-service deduction and billing system of the present invention, which is connected to the information processing module 21 for selling the goods based on the information processing module 21.
  • the price information is settled by the fee, and the billing end information is sent back to the information processing module 21 after the fee settlement is completed, and the billing end information is displayed on the display module 22 by the information processing module 21,
  • the information processing module 21 transmits the charging end information to the decrement weighing and out of stock alarm unit 10 through the first communication module 26, and the decrement weighing and out of stock alarm unit 10 is as above As described, the billing end information is received to perform the stock-out determination.
  • the information processing module 21 simultaneously collects and generates the generated goods consumption information and transmits it to the memory 24 and the display module in real time, when the sales and purchase price information is output to the billing and settlement unit, wherein the goods are
  • the consumption information includes the type information of the sold product, the unit price information of the sold product, the weight information of the sold product, and the price information of the sold product, etc., wherein the item type information of the sold item and the unit price information of the sold item are passed through the item type and unit price in the memory 24.
  • the information is obtained, the sold product weight information is obtained by the reduced weighing and out of stock alarm unit 10, and the sold product price information is obtained by the above calculation, and the information processing module 21 passes the above-mentioned goods consumption information through the second communication module.
  • the information processing module 21 further receives the replenishment operation information transmitted by the operation button module 23.
  • the replenishment operation information needs to be input through the operation button module 23 to confirm that the replenishment operation is performed. Therefore, after the information processing module 21 receives the replenishment operation information sent by the operation button module 23, the information processing module 21 first generates a replenishment operation completed signal and transmits the replenishment operation completion signal to the button operation prompt module.
  • the information processing module 21 transmits the received replenishment operation information to the decrement weighing and out of stock alarm unit 10 through the first communication module 26,
  • the weight loss weighing and out of stock alarm unit 10 performs the weight initializing operation as described above when receiving the replenishment operation information to update the current item remaining weight and the previous item remaining weight to the replenished item weight.
  • the memory 24 stores the item type and unit price information and the item consumption information transmitted by the information processing module 21.
  • the display module 22 displays the information to be displayed transmitted by the information processing module 21, including the goods consumption information as described above, and the display module preferably adopts an LCD display, such as a TFT 7 inch liquid crystal display.
  • the operation button module 23 is configured to transmit the replenishment operation information to the information processing module 21 after the user completes the replenishment operation.
  • the button operation prompting module 25 receives the replenishment operation completed signal transmitted by the information processing module 21, and prompts the replenishment operation to be completed in a buzzer manner after receiving the relevant signal, which belongs to a reminding device.
  • the database management system 30 can be used as a background control device for controlling the self-service reduction weighing and billing system of the present invention, including setting reference parameter data for weighing calculation, weight loss alarm threshold value and product variety and The parameter data required for system operation such as unit price information is preferably used as a remote control device.
  • the self-service reduction weighing and billing system of the present invention can be integrated, wherein the decrement calculation and out-of-stock detection module 11 and the information processing module 21 can adopt an embedded microcontroller chip, such as an ARM core STM32F series.
  • the micro-controller chip, the weighing module 13 can perform weight detection by using a strain-type resistance sensor, and the storage module can adopt a non-volatile memory chip, such as a flash and an EEPROM chip.
  • the self-decrease weighing and charging method based on the self-service reduction weighing and billing system of the present invention is provided below, including the following steps:
  • the self-service reduction weighing and billing system is started, and the information processing module 21 in the information processing and transmission unit 20 connects to the database management system 30 via wireless WiFi (or wired Ethernet), and obtains a preset from it.
  • the decrement calculation and out of stock detection module 11 of 10 transmits the item type and unit price information to the memory 24 of the information processing and transmission unit 20 for storage, simultaneously transmits it to the display module 22 for display, and then performs monitoring of the operation. Whether the button operation function information is transmitted from the button module 23.
  • the decrement calculation and out of stock detection module 11 transmits the received weighing calculation reference parameter data and the out of stock alarm threshold weight to the storage module 15 of the decrement weighing and out of stock alarm unit 10 Store and monitor in real time whether there is replenishment operation information from the information processing module 21.
  • the self-service goods area connected by the symmetrical quantity module performs the replenishing operation, and the replenishment operation information is input through the operation button module 23 of the information processing and transmission unit 20, and after receiving the replenishment operation information, the information processing module 21 will
  • the replenishment operation information is transmitted to the decrement calculation and out of stock detection module 11, and the decrement calculation and out of stock detection module 11 performs the weight initialization operation after receiving the replenishment operation information, that is, the decrement calculation and the out of stock detection module.
  • 11 Immediately receive the remaining weight of the current goods transmitted by the weighing module 13, and simultaneously update the current product remaining weight and the previous product remaining weight stored in the storage module to the current product remaining weight transmitted by the weighing module.
  • the decrement calculation and out of stock detection module 11 automatically generates the sales and delivery item weight information and transmits it to the information processing module 21, and the specific decrement calculation and out of stock detection module 11 receives the weighing module 13 in real time.
  • the remaining weight of the current item transferred and stored in the current item remaining weight storage subunit of the storage module 15 is subtracted from the remaining weight of the previous item stored in the storage module 15 and the current remaining weight of the item to obtain the weight of the sold item.
  • the reference parameter data for weighing calculation stored in the storage module 15 and the weight of the sold product are compared to determine whether the obtained sold product weight is valid, and if valid, the sold product weight information is transmitted to the information processing.
  • the module 21 simultaneously updates the remaining weight of the previous item stored in the previous item remaining weight storage subunit of the storage module 15 to the current item remaining weight stored in the current item remaining weight subunit, and if the sold item weight is invalid, then Data transfer.
  • the information processing module 21 receives the weight loss calculation and the sold-out product weight information transmitted from the stock-out detection module 11, and extracts the product type and the unit price information stored in the storage module.
  • the unit price information and multiplying the unit price information by the weight information of the sold goods to obtain the price information of the sold goods, and then transmitting the price information of the sold goods to the billing and settlement unit for settlement of the fee, and processing by the information
  • the module 21 generates goods consumption information including sales item type information, sales unit price information, sales item weight information, and sales item price information, and transmits the item consumption information to the database management system 30 and information processing and transmission.
  • the memory and display module in the unit.
  • the billing and settlement unit performs fee settlement based on the sales price information provided by the information processing module 21, and returns the billing end information to the information processing module 21 after the fee settlement is completed;
  • the information processing module 21 After receiving the charging end information, the information processing module 21 displays the charging end information on the display module 22, and transmits the charging end information to the reduced weighing and out of stock alarm. Unit 10;
  • the weight loss weighing and stock-out alarm unit 10 performs the stock-out determination after receiving the billing end information, and the specific decrement calculation and stock-out detecting module 11 stores the current product remaining weight stored in the storage module 15 and Out-of-stock alarm threshold weight comparison, if the current product residual weight value is less than or equal to the stock-out alarm threshold weight, generate a stock-out alarm signal and transmit it to the alarm module for stock-out alarm prompt, otherwise loop execution steps (4) to (8) );
  • the replenishment operation information is input through the operation button module 23, and after receiving the replenishment operation information transmitted from the operation button module 23, the information processing module 21 first generates a replenishment operation completed signal and transmits
  • the button operation prompting module 25 is configured to perform a replenishment operation completion reminder, and then transmit the received replenishment operation information to the decrement weighing and out of stock alarm unit 10, and the decrement calculation and out of stock detection module 11 performs The weight initialization operation as described in the step (3), and then the steps (4) to (9) are cyclically performed.
  • the self-service reduction weighing and billing system of the present invention is preferably used as a self-service meal clearing system for ordinary restaurants, hotels, restaurants, school cafeterias, etc., and when such an application is applied, a weight reduction weighing is set for each of the plurality of food varieties.
  • the out-of-stock alarm unit 10 each of the reduced weighing and out-of-stock alarm units 10 are connected to the information processing and transmission unit 20, and the information processing and transmission unit 20 is based on each of the decrement weighing and out-of-stock alarm unit 10
  • Each of the decrement weighing and out-of-stock alarm units 10 is uniquely identified by a different address or a different identification code, wherein the unit price information is correspondingly set for different dish varieties and stored in the information processing and transmission unit 20.
  • each of the food-filling containers is connected to a corresponding weight-reduction and out-of-stock alarm unit 10, and a corresponding one is set on the outer bottom surface of each of the food-filling containers.
  • Weighing module When the self-service meal consumption is performed, the sales weight information is automatically generated from the reduced weighing and out of stock alarm unit 10 for each dish and transmitted to the information processing and transmission unit 20 to generate the selling price information corresponding to each dish, and then The settlement of the corresponding dishes is carried out.
  • the self-service reduction weighing and billing system proposed by the invention is highly systematic, integrated and intelligent, and based on the weight loss weighing and out-of-stock alarm unit, real-time detection and generation of sales and shipment weight information, based on information processing and transmission
  • the unit generates the price information of the products for sale and delivery in real time.
  • the two are organically combined and highly intelligent.
  • the intelligent out-of-stock judgment is made to ensure that the remaining goods are recharged in real time after each consumption behavior.
  • the weight basis is updated, the accuracy of the weight loss weighing is ensured.
  • weight loss weighing occurs, it is scientifically judged whether the weight loss is effective or not, and the level of intelligence is improved.
  • the unique innovations of the present invention enable the self-service reduction weighing and billing system and self-service reduction weighing and billing according to the present invention.
  • the method has a broader application prospect.

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Abstract

一种自助减量称重计费系统以及自助减量称重计费方法，该系统包括减量称重及缺货报警单元（10）和信息处理及传输单元（20），两者通信连接，减量称重及缺货报警单元（10）以减量称重方法自动计算售出货品重量信息，并在判定其有效后将售出货品重量信息传输给信息处理及传输单元（20），信息处理及传输单元（20）基于此自动计算得到售出货品价格信息。该系统高度系统化、集成化和智能化，基于减量称重及缺货报警单元（10）实时检测并生成售出货品重量信息、基于信息处理及传输单元（20）实时生成售出货品价格信息，两者有机结合、高度智能化工作，在计费结束时进行智能缺货判定，在补货后进行称量重量基准更新，并科学判断减重是否有效，具有更为广阔的应用前景。

Description

一种自助减量称重计费系统及自助减量称重计费方法 技术领域
本发明涉及减量称重技术，具体涉及一种自助减量称重计费系统及自助减量称重计费方法。
背景技术
自助消费已经成为一种趋势，越来越多的人喜欢通过自助的方式进行各类消费。现有的食堂餐饮销售系统包括带有键盘输入的售饭POS机及POS记账管理服务器，主要实现电子扣费和记录消费金额的作用。其使用流程为：用户选定需要的饭菜品种和份数(或者个数)，售饭师傅根据品种和数量人工计算出应收费用总额，在售饭POS机的小键盘上键入金额数字，用户在售饭POS机上刷卡后实现自动扣费，售饭POS机将扣费金额等信息通过有线方式传送给POS记账管理服务器。
该系统存在的缺陷主要如下：第一、该系统获取饭菜品种、数量等详细消费数据。由于该系统只记录了扣费总额的消费信息，没有所销售的饭菜品种、数量信息，因此无法提供销售品种、数量的详细数据，无法进行相关的数据分析。第二、该系统无法提供价量相符的销售手段。传统的手工打饭模式，一份饭菜分量的多少完全依靠手工经验，每份饭菜的分量存在差异，但价格相同，消费者对此有意见。第三、该系统无法解决吃不饱和浪费并存的问题。由于按份或者按个销售，而每个人的饭量不同，因此出现有的人整份吃不完、有的人吃不饱的现象，无法满足消费者的实际需求，也容易造成浪费。
针对这种现有技术缺陷，申请人之前创新提出了一种餐饮自助称量销售管理系统的专利，在一定程度上解决了现有技术中的问题，但是该餐饮自助称量销售管理系统的智能化、自动化水平较低，比如其无法通过数据库管理系统编辑货品品种及单价信息，尤其是适用于多个菜品品种时智能化水平很低，而且其无法对售出货品重量是否有效进行智能判定，因为在食堂餐饮中，基于称重减重计算售出菜品重量信息时，需要科学考虑如打餐勺等带来的重量差异，而且该先前的专利对补货操作及补货后的重量初始化、对缺货时机判定以及缺货后报警提醒等等都缺乏高度智能化控制，这些使其在实际应用中存在着巨大的缺陷。
发明内容
本发明基于上述现有技术问题，创新的提出一种全新的自助减量称重计费系统以及基于该系统的自助减量称重计费方法，所述系统高度系统化、集成化和智能化，基于减量称量及缺货报警单元实时检测并生成售出货品重量信息、基于信息处理及传输单元实时生成售出货品价格信息，两者有机结合、高度智能化工作，当计费结束时进行智能缺货判定，以保证每次消费行为后能够实时获知剩余货品充余情况，当进行补货时，对称量重量基准进行更新， 以保证减重称量的准确性，当发生减重称量时，科学判断减重是否有效，提高了智能化水平，当进行售出货品计费时，同时生成货品消费信息，以便于进行基于大数据的分析统计，等等这些本发明独具的创新之处，使得本发明所述的自助减量称重计费系统及其自助减量称重计费方法具有更为广阔的应用前景。
本发明解决上述技术问题所采取的技术方案如下：
一种自助减量称重计费系统，包括减量称重及缺货报警单元和信息处理及传输单元，所述减量称重及缺货报警单元和所述信息处理及传输单元通信连接，所述减量称重及缺货报警单元以减量称重方法自动计算售出货品重量信息，并在判定其有效后将售出货品重量信息传输给所述信息处理及传输单元，所述信息处理及传输单元基于所述减量称重及缺货报警单元提供的售出货品重量信息自动计算得到售出货品价格信息。
进一步的根据本发明所述的自助减量称重计费系统，其中所述减量称重及缺货报警单元通过对前次货品剩余重量和当前货品剩余重量进行相减运算得到所述售出货品重量信息，并通过将所述售出货品重量信息与预设的称量计算用基准参数数据进行比较分析以判断售出货品重量信息是否有效，若有效则将售出货品重量信息传输给所述信息处理及传输单元，同时将前次货品剩余重量更新为当前货品剩余重量，所述称量计算用基准参数数据包括有正常重量波动值；所述减量称重及缺货报警单元通过比较当前货品剩余重量和预设的缺货报警阀值重量进行缺货判定与报警处理；所述信息处理及传输单元通过将所述售出货品重量信息和对应货品单价信息进行相乘运算得到所述售出货品价格信息；所述信息处理及传输单元还能够接收用户输入补货操作信息，并将所述补货操作信息发送给减量称重及缺货报警单元，所述减量称重及缺货报警单元在收到所述补货操作信息后将前次货品剩余重量更新为当前货品剩余重量。
进一步的根据本发明所述的自助减量称重计费系统，其中所述信息处理及传输单元连接于计费结算单元和数据库管理系统；所述信息处理及传输单元向所述计费结算单元发送售出货品价格信息；所述计费结算单元完成费用结算后向所述信息处理及传输单元回传计费结束信息，所述信息处理及传输单元将所述计费结束信息发送给所述减量称重及缺货报警单元，所述减量称重及缺货报警单元在收到上述计费结束信息后进行缺货判定与报警处理；所述数据库管理系统向所述信息处理及传输单元发送称量计算用基准参数数据、缺货报警阀值重量和货品品种与单价信息，由所述信息处理及传输单元将所述称量计算用基准参数数据和缺货报警阀值重量发送给所述减量称重及缺货报警单元；所述信息处理及传输单元向所述计费结算单元发送售出货品价格信息后生成货品消费信息，并将所生成的货品消费信息发送给所述数据库管理系统。
进一步的根据本发明所述的自助减量称重计费系统，其中所述减量称重及缺货报警单元包括减量计算及缺货检测模块、报警模块、称量模块、通信模块和存储模块，所述减量计算及缺货检测模块分别连接于所述称量模块、存储模块、报警模块和通信模块；所述称量模块实时地将称量的货品剩余重量传输给所述减量计算及缺货检测模块；所述存储模块中设置有前次货品剩余重量存储子单元、当前货品剩余重量存储子单元、称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元，分别用于存储前次货品剩余重量、当前货品剩余重量、称量计算用基准参数数据和缺货报警阀值重量；所述报警模块根据减量计算及缺货检测模块发送的缺货报警信号进行报警提示；所述通信模块用于实现减量称重及缺货报警单元和信息处理及传输单元之间的通信连接。
进一步的根据本发明所述的自助减量称重计费系统，其中所述减量计算及缺货检测模块通过所述通信模块接收信息处理及传输单元传输来的称量计算用基准参数数据、缺货报警阀值重量、计费结束信息和补货操作信息，并将所述称量计算用基准参数数据和缺货报警阀值重量分别存储于存储模块的称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元中；所述减量计算及缺货检测模块实时接收所述称量模块传输来的当前货品剩余重量，并将其存储于存储模块的当前货品剩余重量存储子单元中；所述减量计算及缺货检测模块通过对存储模块中存储的前次货品剩余重量与当前货品剩余重量进行相减运算得到售出货品重量信息，并比较售出货品重量是否大于称量计算用基准参数数据包括的正常重量波动值，若大于则判定售出货品重量信息有效并将其通过通信模块传输给所述信息处理及传输单元，同时将存储模块中存储的前次货品剩余重量更新为当前货品剩余重量；所述减量计算及缺货检测模块在接收到计费结束信息后，比较存储模块中存储的当前货品剩余重量是否小于等于缺货报警阀值重量，若是则由减量计算及缺货检测模块生成缺货报警信号并传输给报警模块进行缺货报警提示；所述减量计算及缺货检测模块在接收到信息处理及传输单元传输的补货操作信息后将存储模块存储的前次货品剩余重量更新为称量模块于补货后最新检测到的当前货品剩余重量。
进一步的根据本发明所述的自助减量称重计费系统，其中所述信息处理及传输单元包括信息处理模块、显示模块、操作按键模块、存储器、按键操作提示模块、第一通信模块和第二通信模块；所述信息处理模块分别连接于所述第一通信模块、第二通信模块、显示模块、操作按键模块、存储器和按键操作提示模块；所述第一通信模块用于实现所述信息处理及传输单元和所述减量称重及缺货报警单元的通信连接，所述第二通信模块用于实现所述信息处理及传输单元和数据库管理系统的通信连接；所述信息处理模块通过所述第二通信模块获取由数据库管理系统提供的称量计算用基准参数数据、缺货报警阀值重量和货品品种及单价信 息，并将称量计算用基准参数数据及缺货报警阀值重量通过所述第一通信模块传输给所述减量称重及缺货报警单元，将货品品种及单价信息传输给所述存储器；所述信息处理模块通过所述第一通信模块从所述减量称重及缺货报警单元接收售出货品重量信息，并从所述存储器存储的货品品种及单价信息中获取与售出货品品种对应的单价信息，将售出货品单价信息和售出货品重量信息进行相乘运算得到售出货品价格信息，并将其传输给计费结算单元，所述计费结算单元完成费用结算后向所述信息处理模块回传计费结束信息，所述信息处理模块将计费结束信息通过所述第一通信模块传输给所述减量称重及缺货报警单元，同时由所述信息处理模块生成货品消费信息并传输给存储器、显示模块和数据库管理系统；所述操作按键模块用于用户输入补货操作信息，所述信息处理模块在接收到操作按键模块传来的补货操作信息后，生成补货操作完成信号并输出给所述按键操作提示模块，同时将补货操作信息通过第一通信模块传输给所述减量称重及缺货报警单元。
进一步的根据本发明所述的自助减量称重计费系统，其中针对不同的货品品种包括有多个减量称重及缺货报警单元，每个减量称重及缺货报警单元用于提供一种货品的售出重量信息，多个减量称重及缺货报警单元均与所述信息处理及传输单元通信连接，所述信息处理及传输单元中存储的货品品种及单价信息包括有若干货品品种和每个货品品种对应的单价信息，每个减量称重及缺货报警单元向所述信息处理及传输单元发送售出货品重量信息时，所述信息处理及传输单元自动提取与售出货品品种对应一致的单价信息。
进一步的根据本发明所述的自助减量称重计费系统，其中所述减量计算及缺货检测模块和信息处理模块采用嵌入式微控制器芯片，所述称量模块采用应变式电阻传感重量检测器，所述显示模块采用LCD显示器，所述存储模块和存储器采用非易失性存储芯片，所述第一通信模块采用串行通信标准，所述第二通信模块采用无线WiFi或有线以太网通信标准。
一种基于本发明所述自助减量称重计费系统进行的自助减量称重计费方法，包括以下步骤：
(1)启动自助减量称重计费系统，其中的信息处理及传输单元通过数据库管理系统获取称量计算用基准参数数据、缺货报警阀值重量、货品品种及单价信息，将货品品种及单价信息存储于信息处理及传输单元的存储器中，将称量计算用基准参数数据及缺货报警阀值重量存储于减量称量及缺货报警单元的存储模块中；
(2)对减量称量及缺货报警单元中的称量模块连接的自助货品区进行补货操作，并通过信息处理及传输单元的操作按键模块输入补货操作信息，由信息处理及传输单元的信息处理模块将补货操作信息传输给所述减量称量及缺货报警单元中的减量计算及缺货检测模块，所述减量计算及缺货检测模块收到补货操作信息后进行重量初始化操作，将减量称量及缺货报 警单元中的存储模块存储的当前货品剩余重量和前次货品剩余重量同时更新为称量模块最新传输的当前货品剩余重量；
(3)所述减量计算及缺货检测模块实时接收并存储所述称量模块传输来的当前货品剩余重量，接着将存储的前次货品剩余重量和当前货品剩余重量进行相减运算得到售出货品重量信息，然后用存储模块中预存的称量计算用基准参数数据和售出货品重量信息进行比较以确定售出货品重量信息是否有效，若有效则将售出货品重量信息传输给所述信息处理模块，同时将前次货品剩余重量更新为当前货品剩余重量，若无效则不进行数据传输；
(4)所述信息处理模块接收到减量计算及缺货检测模块传输来的售出货品重量信息后，从信息处理及传输单元的存储器中存储的货品品种及单价信息中提取与售出货品品种对应的单价信息，并将单价信息与售出货品重量信息进行相乘运算得到售出货品价格信息，然后将售出货品价格信息传输给计费结算单元进行费用结算，同时由所述信息处理模块生成货品消费信息，并将货品消费信息传输给数据库管理系统以及信息处理及传输单元中的存储器和显示模块；
(5)所述计费结算单元基于信息处理模块提供的售出货品价格信息进行费用结算，并在费用结算完成后将计费结束信息回传给所述信息处理模块；所述信息处理模块将计费结束信息传输给所述减量称重及缺货报警单元中的减量计算及缺货检测模块；
(6)所述减量计算及缺货检测模块接收到计费结束信息后将其存储模块中存储的当前货品剩余重量和缺货报警阀值重量进行比较，若当前货品剩余重量值小于等于缺货报警阀值重量，则生成缺货报警信号并传输给报警模块进行缺货报警提示，否则循环执行步骤(3)至(6)；
(7)用户进行补货操作时循环执行步骤(2)至(6)。
通过本发明的技术至少能够达到以下技术效果：
1)本发明所述的一种自助减量称重计费系统高度系统化、集成化和智能化，基于减量称量及缺货报警单元实时检测并生成售出货品重量信息、基于信息处理及传输单元实时生成售出货品价格信息，两者有机结合、高度智能化工作，当计费结束时进行缺货判定，以保证每次消费行为后能够实时获知剩余货品充余情况，当进行补货时，对称量重量基准进行更新，以保证减重称量的准确性，当发生减重称量时，科学判断减重是否有效，提高了智能化水平，当进行售出货品计费时，同时生产货品消费信息，以便于进行基于大数据的分析统计，具有更为广阔的应用前景。
2)本发明所述自助减量称重计费系统及基于其的自助减量称重计费方法能极大地降低了人工成本，在整个自助货品售卖过程中无需管理人员手动干预，全过程由消费者自助完成。
3)本发明所述的自助减量称重计费系统集自助取货、自动称量、自动计价、缺货报警等 功能于一体，实现了按需取用、按量收费，解决了货品浪费，保证了公平销售，克服了传统手工输入消费金额带来的误输入、效率低等问题。
4)本发明所述的自助减量称重计费系统能够生成详细记录，为进一步地进行科学管理、销售分析、个人健康饮食营养分析提供了明晰的数据，复合大数据发展趋势。
5)本发明所述自助减量称重计费系统在餐饮业、零售业等多个技术领域具有非常实用的使用价值，市场前景非常广阔。
附图说明
附图1为本发明所述自助减量称重计费系统的整体结构框图；
附图2为本发明所述自助减量称重计费系统中减量称重及缺货报警单元的组成结构框图；
附图3为本发明所述自助减量称重计费系统中信息处理及传输单元的组成结构框图；
图中各附图标记的含义如下：
10-减量称重及缺货报警单元，20-信息处理及传输单元，30-数据库管理系统；
11-减量计算及缺货检测模块、12-报警模块、13-称量模块、14-通信模块、15-存储模块；
21-信息处理模块、22-显示模块、23-操作按键模块、24-存储器、25-按键操作提示模块、26-第一通信模块、27-第二通信模块。
具体实施方式
以下结合附图对本发明的技术方案进行详细的描述，以使本领域技术人员能够更加清楚的理解本发明，但并不因此限制本发明的保护范围。
本发明提出一种自助减量称重计费系统及其称重计费方法，所述自助减量称重计费系统整体包括减量称重及缺货报警单元10和信息处理及传输单元20，两单元之间通过通信线连接。所述自助减量称重计费系统通过有线或无线网络方式与数据库管理系统30进行信息传输。
所述减量称重及缺货报警单元10用于称量货品剩余重量，以减量称重计算方法计算售出货品重量信息并传输给所述信息处理及传输单元20；所述减量称重及缺货报警单元10还能比较当前货品剩余重量和预存的缺货报警阀值重量，基于比较结果进行缺货报警处理；同时所述减量称重及缺货报警单元10还能够接收所述信息处理及传输单元20传输的称量计算用基准参数数据、缺货报警阀值重量、计费结束信息和补货操作信息，将收到的称量计算用基准参数数据和缺货报警阀值重量进行存储处理，并在收到计费结束信息后进行缺货判断和报警处理，在收到补货操作信息后初始化当前货品剩余重量和前次货品剩余重量。
所述信息处理及传输单元20用于从数据库管理系统30获取称量计算用基准参数数据、 缺货报警阀值重量、货品品种与单价信息，并将称量计算用基准参数数据及缺货报警阀值重量传输给所述减量称重及缺货报警单元10；同时所述信息处理及传输单元20能够从所述减量称重及缺货报警单元10接收售出货品重量信息，自动计算售出货品价格并传输给计费结算单元进行结算，同时将计费结算单元回传的计费结束信息传输给所述减量称重及缺货报警单元10，并将售出货品品种、单价、重量、价格等货品消费信息进行实时显示，同时将货品消费信息传输给数据库管理系统30；所述信息处理及传输单元20还能够接收操作者通过按键输入的补货操作信息，并将补货操作信息传输给所述减量称重及缺货报警单元10。
更具体的，所述减量称重及缺货报警单元10包括减量计算及缺货检测模块11、报警模块12、称量模块13、通信模块14、存储模块15；所述减量计算及缺货检测模块11分别连接于所述称量模块13、存储模块15、报警模块12、通信模块14；所述通信模块14与所述信息处理及传输单元20建立通信连接。
进一步的，所述称量模块13用于实时称量货品剩余重量并传输给所述减量计算及缺货检测模块11；所述存储模块15中设置有前次货品剩余重量存储子单元、当前货品剩余重量存储子单元、称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元，分别用于存储前次货品剩余重量、当前货品剩余重量、称量计算用基准参数数据和缺货报警阀值重量；所述报警模块12根据减量计算及缺货检测模块11发送的缺货报警信息，以语音(或蜂鸣)方式发出报警提示；所述通信模块14用于实现减量称重及缺货报警单元10和信息处理及传输单元20之间的通信连接，具体的所述通信模块14通过采用符合有线串行通信标准的接口实现减量计算及缺货检测模块11和所述信息处理及传输单元20中信息处理模块21之间的串行通信，优选的所述通信模块采用如RS-232、RS-485、USB串行通信标准。
所述减量计算及缺货检测模块11作为所述减量称重及缺货报警单元10中的核心处理模块，具体以下处理功能：所述减量计算及缺货检测模块11通过所述通信模块14接收所述信息处理及传输单元20传输来的称量计算用基准参数数据、缺货报警阀值重量、计费结束信息和补货操作信息，并将所述称量计算用基准参数数据和缺货报警阀值重量分别存储于存储模块15的称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元中；所述减量计算及缺货检测模块11实时接收所述称量模块13传输来的当前货品剩余重量，并将其存储于存储模块15的当前货品剩余重量存储子单元中；在重量初始化操作中所述减量计算及缺货检测模块11将称量模块13传输来的当前货品剩余重量同时存储于存储模块15的当前货品剩余重量存储子单元和前次货品剩余重量存储子单元中，也就是说在重量初始化操作中存储模块15中存储的当前货品剩余重量和前次货品剩余重量相同；所述减量计算及缺货检测模块11通过对存储模块15中存储的前次货品剩余重量与当前货品剩余重量进行相减计算得到售出 货品重量信息；所述减量计算及缺货检测模块11每次计算得到售出货品重量信息后，同时要进行售出货品重量有效性确认判定，具体的将所述售出货品重量信息与存储模块15中预存的称量计算用基准参数数据进行比较以判定售出货品重量是否有效，所述称量计算用基准参数数据优选的包括最低售出重量基准，若所述减量计算及缺货检测模块11计算得到的售出货品重量信息大于所述最低售出重量基准，则判定售出货品重量有效，此时通过所述通信模块14向所述信息处理及传输单元20传输售出货品重量信息，若所述减量计算及缺货检测模块11计算得到的售出货品重量信息小于等于所述最低售出重量基准，则说明称量模块13测得的重量差可能属于正常的质量误差，并没有发生实际消费，比如称量模块13用于称量饭菜时，必须考虑其中菜勺的重量，不能因为取放菜勺引起的重量变化进行消费计费，因此当售出货品重量信息小于等于所述最低售出重量基准时，所述减量计算及缺货检测模块11判定售出货品重量无效，不进行数据传输；所述减量计算及缺货检测模块11在判定售出货品重量有效、并向信息处理及传输单元20传输售出货品重量信息后，自动的前次货品剩余重量更新为当前货品剩余重量，具体的所述减量计算及缺货检测模块11每次计算完售出货品重量信息并判定其有效后，读取存储模块中当前货品剩余重量存储子单元中存储的当前货品剩余重量信息，并将其存储于前次货品剩余重量存储子单元中以将前次货品剩余重量更新为当前货品剩余重量。所述减量计算及缺货检测模块11还进行缺货判断和报警处理，具体的所述减量计算及缺货检测模块11读取存储模块15中存储的当前货品剩余重量和缺货报警阀值重量，并将当前货品剩余重量和缺货报警阀值重量进行比较计算，若当前货品剩余重量小于等于缺货报警阀值重量时，所述减量计算及缺货检测模块11生成缺货报警控制信息，并将其传输给报警模块12，由报警模块12以语音或蜂鸣等方式进行缺货报警提示，优选的所述减量计算及缺货检测模块11在每次减量称重计费结束后进行缺货判断，即所述减量计算及缺货检测模块11在接收到信息处理及传输单元20回传的计费结束信息后，进行上述缺货判断处理，这样能够保证减量计算及缺货检测模块11可及时获知称量模块所称量容器内的货品是否充足，其中的缺货报警阀值重量可根据不同种类的货品进行不同的设定。所述减量计算及缺货检测模块11在接收到信息处理及传输单元20传输的补货操作信息时，进行重量初始化操作，即将存储模块中存储的当前货品剩余重量和前次货品剩余重量同时更新为称量模块13此时(补货后)检测的当前货品剩余重量，以保证每次补货操作完成后能够基于补货后的货品新重量重新进行减量称重计算。
以上完整的描述了本发明中所述减量称重及缺货报警单元10的组成结构及各功能模块的工作方式。下面具体描述本发明中信息处理及传输单元20的具体结构和工作方式。所述信息处理及传输单元20包括信息处理模块21、显示模块22、操作按键模块23、存储器24、按 键操作提示模块25、第一通信模块26和第二通信模块27；所述信息处理模块21分别连接于所述第一通信模块26、第二通信模块27、显示模块22、操作按键模块23、存储器24和按键操作提示模块25。
进一步的所述第一通信模块26和所述减量称重及缺货报警单元10中的通信模块14通信连接，所述第二通信模块27和数据库管理系统30通信连接，优选的所述第一通信模块26采用符合有线串行通信标准的接口和所述减量称重及缺货报警单元10中的通信模块14进行串行通信,优选的如RS-232、RS-485、USB串行通信标准，优选的所述第二通信模块27采用无线WiFi(或有线以太网)的通信方式和数据库管理系统30进行信息传输。所述信息处理模块21通过所述第二通信模块27获取由数据库管理系统30提供的称量计算用基准参数数据、缺货报警阀值重量和货品品种及单价信息，并将称量计算用基准参数数据及缺货报警阀值重量通过所述第一通信模块26传输给所述减量称重及缺货报警单元10，将货品品种及单价信息传输给所述存储器24；所述货品品种及单价信息包括有每个货品品种所对应的单价信息，所述减量称重及缺货报警单元10提供售出货品重量信息，所述货品品种及单价信息中包括有该售出货品对应的价格信息。优选的针对多种货品，可设置多个减量称重及缺货报警单元10，每个减量称重及缺货报警单元10对应于一种货品，用于提供一种货品的售出重量信息，多个减量称重及缺货报警单元10分别与所述信息处理及传输单元20相连接，信息处理及传输单元20可基于每个减量称重及缺货报警单元10的ID等信息对其进行唯一识别，信息处理模块21能够从存储器24中存储的货品品种及单价信息查找获得与减量称重及缺货报警单元10称量的货品品种对应的单价信息。所述信息处理模块21通过所述第一通信模块26从所述减量称重及缺货报警单元10接收售出货品重量信息，并从所述存储器24中预存的货品品种及单价信息中获取与减量称重及缺货报警单元10提供的售出货品品种对应的单价信息，然后进行相乘运算自动得到减量称重及缺货报警单元10售出货品的价格信息，并将该价格信息传输给计费结算单元进行费用结算。所述计费结算单元优选的可作为本发明所述自助减量称重计费系统本身包括的一个部分，其连接于所述信息处理模块21，用于基于信息处理模块21提供的售出货品价格信息进行费用结算，并在费用结算完成后将计费结束信息回传给所述信息处理模块21，由所述信息处理模块21将所述计费结束信息显示于显示模块22上，同时由所述信息处理模块21将所述计费结束信息通过所述第一通信模块26传输给所述减量称重及缺货报警单元10，所述减量称重及缺货报警单元10如上所述的，在接收到计费结束信息进行缺货判定。同时所述信息处理模块21每次向计费结算单元输出售出货品价格信息时，还同时收集整理生成货品消费信息并将其实时传输给所述存储器24和所述显示模块，其中所述货品消费信息包括售出货品品种信息、售出货品单价信息、售出货品重量信息和售出货品价格信息 等，其中售出货品品种信息和售出货品单价信息通过在存储器24中的货品品种及单价信息获得，售出货品重量信息通过减量称重及缺货报警单元10获得，售出货品价格信息通过上述计算获得，同时所述信息处理模块21将上述货品消费信息通过所述第二通信模块27传输给数据库管理系统30。此外所述信息处理模块21还接收所述操作按键模块23传输来的补货操作信息，当用户进行了补货操作时，需要通过操作按键模块23输入补货操作信息以确认进行了补货操作，因此所述信息处理模块21接收到操作按键模块23传来的补货操作信息后，首先由所述信息处理模块21再生成补货操作已完成信号并将其传输给所述按键操作提示模块25，进行补货操作完成提醒，其次由所述信息处理模块21将接收到的补货操作信息通过所述第一通信模块26传输给所述减量称重及缺货报警单元10，所述减量称重及缺货报警单元10在接收到所述补货操作信息时进行如上所述的重量初始化操作，以将当前货品剩余重量和前次货品剩余重量均更新为补货后货品重量。所述存储器24存储由所述信息处理模块21传输来的货品品种及单价信息、货品消费信息。所述显示模块22显示由所述信息处理模块21传输来的待显示信息，包括如之前所述的货品消费信息，所述显示模块优选的采用采用LCD显示器，如TFT 7寸液晶显示器。所述操作按键模块23用于在用户完成补货操作后将补货操作信息传输给所述信息处理模块21。所述按键操作提示模块25接收所述信息处理模块21传输来的补货操作已完成信号，并在收到相关信号后以蜂鸣方式提示补货操作已完成，其属于一种提醒装置。
所述数据库管理系统30可作为一种后台操控设备，用于操控本发明所述自助减量称重计费系统，包括设置称量计算用基准参数数据、缺货报警阀值重量和货品品种及单价信息等系统运行所需参数数据，优选的可作为一种远程操控设备。本发明所述的自助减量称重计费系统可进行集成化设置，其中所述减量计算及缺货检测模块11、信息处理模块21可采用嵌入式微控制器芯片，如ARM核的STM32F系列微控制器芯片，所述的称量模块13可采用应变式电阻传感器进行重量检测，所述存储模块可采用非易失性存储器芯片，如Flash和EEPROM芯片等。
下面给出基于本发明所述自助减量称重计费系统进行的自助减量称重计费方法，包括以下步骤：
(1)首先启动所述自助减量称重计费系统，信息处理及传输单元20中的信息处理模块21通过无线WiFi(或有线以太网)连接数据库管理系统30，从其获取预设好的称量计算用基准参数数据、缺货报警阀值重量、货品品种及单价信息，并将称量计算用基准参数数据及缺货报警阀值重量传输给所述减量称量及缺货报警单元10中的减量计算及缺货检测模块11，将货品品种及单价信息传输给所述信息处理及传输单元20的存储器24进行存储，同时传输 给显示模块22进行显示，然后实施监测所述操作按键模块23是否传来补货操作信息。
(2)所述减量计算及缺货检测模块11将接收的称量计算用基准参数数据及缺货报警阀值重量传输给所述减量称重及缺货报警单元10的存储模块15进行存储，并实时监测从所述信息处理模块21是否有补货操作信息传来。
(3)对称量模块连接的自助货品区进行补货操作，并通过信息处理及传输单元20的操作按键模块23输入补货操作信息，信息处理模块21接收到所述补货操作信息后，将补货操作信息传输给所述减量计算及缺货检测模块11，所述减量计算及缺货检测模块11收到补货操作信息后进行重量初始化操作，即减量计算及缺货检测模块11立即接收称量模块13传输来的当前货品剩余重量，并将其存储模块中存储的当前货品剩余重量和前次货品剩余重量同时更新为称量模块传输的当前货品剩余重量。
(4)所述减量计算及缺货检测模块11自动生成售出货品重量信息并传输给信息处理模块21，具体的所述减量计算及缺货检测模块11实时接收所述称量模块13传输来的当前货品剩余重量并将其存储到存储模块15的当前货品剩余重量存储子单元，将存储模块15中存储的前次货品剩余重量和当前货品剩余重量进行相减运算得到售出货品重量，然后用存储模块15中预存的称量计算用基准参数数据和售出货品重量进行比较以确定得到的售出货品重量是否有效，若有效，则将售出货品重量信息传输给所述信息处理模块21，同时将存储模块15的前次货品剩余重量存储子单元中存储的前次货品剩余重量更新为当前货品剩余重量子单元中存储的当前货品剩余重量，若售出货品重量无效，则不进行数据传输。
(5)所述信息处理模块21接收到减量计算及缺货检测模块11传输来的售出货品重量信息后，从其存储模块中存储的货品品种及单价信息中提取与售出货品品种对应的单价信息，并将单价信息与所述售出货品重量信息进行相乘运算得到售出货品价格信息，然后将售出货品价格信息传输给计费结算单元进行费用结算，同时由所述信息处理模块21生成包括售出货品品种信息、售出货品单价信息、售出货品重量信息和售出货品价格信息在内的货品消费信息，并将货品消费信息传输给数据库管理系统30以及信息处理及传输单元中的存储器和显示模块。
(6)所述计费结算单元基于信息处理模块21提供的售出货品价格信息进行费用结算，并在费用结算完成后将计费结束信息回传给所述信息处理模块21；
(7)所述信息处理模块21接收到计费结束信息后，将所述计费结束信息显示于显示模块22上，并所述计费结束信息传输给所述减量称重及缺货报警单元10；
(8)所述减量称重及缺货报警单元10接收到计费结束信息后进行缺货判定，具体的减量计算及缺货检测模块11将存储模块15中存储的当前货品剩余重量和缺货报警阀值重量比 较，若当前货品剩余重量值小于等于缺货报警阀值重量，则生成缺货报警信号并传输给报警模块进行缺货报警提示，否则循环执行步骤(4)至(8)；
(9)用户进行补货操作后，通过操作按键模块23输入补货操作信息，信息处理模块21接收到操作按键模块23传来的补货操作信息后，首先生成补货操作已完成信号并传输给按键操作提示模块25，进行补货操作完成提醒，然后将接收到的补货操作信息传输给所述减量称重及缺货报警单元10，由其减量计算及缺货检测模块11进行如步骤(3)中所述的重量初始化操作，然后循环执行步骤(4)至(9)。
应用实施例
本发明所述的自助减量称重计费系统优选的可作为普通饭店、宾馆饭店、学校食堂等的自助取餐结算系统，进行这种应用时，针对多个饭菜品种分别设置减量称重及缺货报警单元10，各减量称重及缺货报警单元10均连接于信息处理及传输单元20，所述信息处理及传输单元20基于每个减量称重及缺货报警单元10的不同地址或不同身份识别码唯一识别每个减量称重及缺货报警单元10，其中针对不同的菜品品种对应设置其单价信息并存储于信息处理及传输单元20中。不同品种的饭菜盛放于不同的打餐容器内，每个打餐容器连接于一个对应的减量称重及缺货报警单元10，具体的在每个打餐容器的外底面设置一个对应的称量模块。进行自助打餐消费时，由针对每个菜品由减量称重及缺货报警单元10自动生成售出重量信息并传输给信息处理及传输单元20生成对应每个菜品的售出价格信息，然后进行对应菜品的费用结算。大大方便了自助取餐操作，而且提高了餐费计算精度，并能够做好按需取量，减少了就餐浪费，同时通过数据库管理系统能够定时的对不同消费者的用餐信息进行大数据分析，有利于生成针对消费者形成有价值的营养分析数据，因此在餐饮业具有广阔的推广应用前景。
综上，本发明提出的自助减量称重计费系统高度系统化、集成化和智能化，基于减量称量及缺货报警单元实时检测并生成售出货品重量信息、基于信息处理及传输单元实时生成售出货品价格信息，两者有机结合、高度智能化工作，当计费结束时进行智能缺货判定，以保证每次消费行为后能够实时获知剩余货品充余情况，当进行补货时，对称量重量基准进行更新，以保证减重称量的准确性，当发生减重称量时，科学判断减重是否有效，提高了智能化水平，当进行售出货品计费时，同时生成货品消费信息，以便于进行基于大数据的分析统计，等等这些本发明独具的创新之处，使得本发明所述的自助减量称重计费系统及其自助减量称重计费方法具有更为广阔的应用前景。
以上仅是对本发明的优选实施方式进行了描述，并不将本发明的技术方案限制于此，本领域技术人员在本发明的主要技术构思的基础上所作的任何公知变形都属于本发明所要保护的技术范畴，本发明具体的保护范围以权利要求书的记载为准。

Claims (11)

  1. 一种自助减量称重计费系统，其特征在于，包括减量称重及缺货报警单元和信息处理及传输单元，所述减量称重及缺货报警单元和所述信息处理及传输单元通信连接，所述减量称重及缺货报警单元以减量称重方法自动计算售出货品重量信息，并在判定其有效后将售出货品重量信息传输给所述信息处理及传输单元，所述信息处理及传输单元基于所述减量称重及缺货报警单元提供的售出货品重量信息自动计算得到售出货品价格信息。
  2. 根据权利要求1所述的自助减量称重计费系统，其特征在于，所述减量称重及缺货报警单元通过对前次货品剩余重量和当前货品剩余重量进行相减运算得到所述售出货品重量信息，并通过将所述售出货品重量信息与预设的称量计算用基准参数数据进行比较分析以判断售出货品重量信息是否有效，若有效则将售出货品重量信息传输给所述信息处理及传输单元，同时将前次货品剩余重量更新为当前货品剩余重量，所述称量计算用基准参数数据包括有正常重量波动值；所述减量称重及缺货报警单元通过比较当前货品剩余重量和预设的缺货报警阀值重量进行缺货判定与报警处理；所述信息处理及传输单元通过将所述售出货品重量信息和对应货品单价信息进行相乘运算得到所述售出货品价格信息；所述信息处理及传输单元还能够接收用户输入补货操作信息，并将所述补货操作信息发送给减量称重及缺货报警单元，所述减量称重及缺货报警单元在收到所述补货操作信息后将前次货品剩余重量更新为当前货品剩余重量。
  3. 根据权利要求2所述的自助减量称重计费系统，其特征在于，所述信息处理及传输单元连接于计费结算单元和数据库管理系统；所述信息处理及传输单元向所述计费结算单元发送售出货品价格信息；所述计费结算单元完成费用结算后向所述信息处理及传输单元回传计费结束信息，所述信息处理及传输单元将所述计费结束信息发送给所述减量称重及缺货报警单元，所述减量称重及缺货报警单元在收到上述计费结束信息后进行缺货判定与报警处理；所述数据库管理系统向所述信息处理及传输单元发送称量计算用基准参数数据、缺货报警阀值重量和货品品种与单价信息，由所述信息处理及传输单元将所述称量计算用基准参数数据和缺货报警阀值重量发送给所述减量称重及缺货报警单元；所述信息处理及传输单元向所述计费结算单元发送售出货品价格信息后生成货品消费信息，并将所生成的货品消费信息发送给所述数据库管理系统。
  4. 根据权利要求3所述的自助减量称重计费系统，其特征在于，所述减量称重及缺货报警单元包括减量计算及缺货检测模块、报警模块、称量模块、通信模块和存储模块，所述减量计算及缺货检测模块分别连接于所述称量模块、存储模块、报警模块和通信模块；所述称量模块实时地将称量的货品剩余重量传输给所述减量计算及缺货检测模块；所述存储模块中设置有前次货品剩余重量存储子单元、当前货品剩余重量存储子单元、称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元，分别用于存储前次货品剩余重量、当前货 品剩余重量、称量计算用基准参数数据和缺货报警阀值重量；所述报警模块根据减量计算及缺货检测模块发送的缺货报警信号进行报警提示；所述通信模块用于实现减量称重及缺货报警单元和信息处理及传输单元之间的通信连接。
  5. 根据权利要求4所述的自助减量称重计费系统，其特征在于，所述减量计算及缺货检测模块通过所述通信模块接收信息处理及传输单元传输来的称量计算用基准参数数据、缺货报警阀值重量、计费结束信息和补货操作信息，并将所述称量计算用基准参数数据和缺货报警阀值重量分别存储于存储模块的称量计算用基准参数数据存储子单元和缺货报警阀值重量存储子单元中；所述减量计算及缺货检测模块实时接收所述称量模块传输来的当前货品剩余重量，并将其存储于存储模块的当前货品剩余重量存储子单元中；所述减量计算及缺货检测模块通过对存储模块中存储的前次货品剩余重量与当前货品剩余重量进行相减运算得到售出货品重量信息，并比较售出货品重量是否大于称量计算用基准参数数据包括的正常重量波动值，若大于则判定售出货品重量信息有效并将其通过通信模块传输给所述信息处理及传输单元，同时将存储模块中存储的前次货品剩余重量更新为当前货品剩余重量；所述减量计算及缺货检测模块在接收到计费结束信息后，比较存储模块中存储的当前货品剩余重量是否小于等于缺货报警阀值重量，若是则由减量计算及缺货检测模块生成缺货报警信号并传输给报警模块进行缺货报警提示；所述减量计算及缺货检测模块在接收到信息处理及传输单元传输的补货操作信息后将存储模块存储的前次货品剩余重量更新为称量模块于补货后最新检测到的当前货品剩余重量。
  6. 根据权利要求5所述的自助减量称重计费系统，其特征在于，所述信息处理及传输单元包括信息处理模块、显示模块、操作按键模块、存储器、按键操作提示模块、第一通信模块和第二通信模块；所述信息处理模块分别连接于所述第一通信模块、第二通信模块、显示模块、操作按键模块、存储器和按键操作提示模块；所述第一通信模块用于实现所述信息处理及传输单元和所述减量称重及缺货报警单元的通信连接，所述第二通信模块用于实现所述信息处理及传输单元和数据库管理系统的通信连接；所述信息处理模块通过所述第二通信模块获取由数据库管理系统提供的称量计算用基准参数数据、缺货报警阀值重量和货品品种及单价信息，并将称量计算用基准参数数据及缺货报警阀值重量通过所述第一通信模块传输给所述减量称重及缺货报警单元，将货品品种及单价信息传输给所述存储器；所述信息处理模块通过所述第一通信模块从所述减量称重及缺货报警单元接收售出货品重量信息，并从所述存储器存储的货品品种及单价信息中获取与售出货品品种对应的单价信息，将售出货品单价信息和售出货品重量信息进行相乘运算得到售出货品价格信息，并将其传输给计费结算单元，所述计费结算单元完成费用结算后向所述信息处理模块回传计费结束信息，所述信息处理模块将计费结束信息通过所述第一通信模块传输给所述减量称重及缺货报警单元，同时由所述 信息处理模块生成货品消费信息并传输给存储器、显示模块和数据库管理系统；所述操作按键模块用于用户输入补货操作信息，所述信息处理模块在接收到操作按键模块传来的补货操作信息后，生成补货操作完成信号并输出给所述按键操作提示模块，同时将补货操作信息通过第一通信模块传输给所述减量称重及缺货报警单元。
  7. 根据权利要求2所述的自助减量称重计费系统，其特征在于，所述信息处理及传输单元包括信息处理模块、显示模块、操作按键模块、存储器、按键操作提示模块、第一通信模块和第二通信模块；所述信息处理模块分别连接于所述第一通信模块、第二通信模块、显示模块、操作按键模块、存储器和按键操作提示模块；所述第一通信模块用于实现所述信息处理及传输单元和所述减量称重及缺货报警单元的通信连接，所述第二通信模块用于实现所述信息处理及传输单元和数据库管理系统的通信连接；所述信息处理模块通过所述第二通信模块获取由数据库管理系统提供的称量计算用基准参数数据、缺货报警阀值重量和货品品种及单价信息，并将称量计算用基准参数数据及缺货报警阀值重量通过所述第一通信模块传输给所述减量称重及缺货报警单元，将货品品种及单价信息传输给所述存储器；所述信息处理模块通过所述第一通信模块从所述减量称重及缺货报警单元接收售出货品重量信息，并从所述存储器存储的货品品种及单价信息中获取与售出货品品种对应的单价信息，将售出货品单价信息和售出货品重量信息进行相乘运算得到售出货品价格信息，并将其传输给计费结算单元，所述计费结算单元完成费用结算后向所述信息处理模块回传计费结束信息，所述信息处理模块将计费结束信息通过所述第一通信模块传输给所述减量称重及缺货报警单元，同时由所述信息处理模块生成货品消费信息并传输给存储器、显示模块和数据库管理系统；所述操作按键模块用于用户输入补货操作信息，所述信息处理模块在接收到操作按键模块传来的补货操作信息后，生成补货操作完成信号并输出给所述按键操作提示模块，同时将补货操作信息通过第一通信模块传输给所述减量称重及缺货报警单元。
  8. 根据权利要求1所述的自助减量称重计费系统，其特征在于，针对不同的货品品种包括有多个减量称重及缺货报警单元，每个减量称重及缺货报警单元用于提供一种货品的售出重量信息，多个减量称重及缺货报警单元均与所述信息处理及传输单元通信连接，所述信息处理及传输单元中存储的货品品种及单价信息包括有若干货品品种和每个货品品种对应的单价信息，每个减量称重及缺货报警单元向所述信息处理及传输单元发送售出货品重量信息时，所述信息处理及传输单元自动提取与售出货品品种对应一致的单价信息。
  9. 根据权利要求4所述的自助减量称重计费系统，其特征在于，所述减量计算及缺货检测模块和信息处理模块采用嵌入式微控制器芯片，所述称量模块采用应变式电阻传感重量检测器，所述显示模块采用LCD显示器，所述存储模块和存储器采用非易失性存储芯片，所述第一通信模块采用串行通信标准，所述第二通信模块采用无线WiFi或有线以太网通信标准。
  10. 一种基于权利要求1所述自助减量称重计费系统进行的自助减量称重计费方法，其特征在于，包括以下步骤：
    (1)启动自助减量称重计费系统，其中的信息处理及传输单元通过数据库管理系统获取称量计算用基准参数数据、缺货报警阀值重量、货品品种及单价信息，将货品品种及单价信息存储于信息处理及传输单元的存储器中，将称量计算用基准参数数据及缺货报警阀值重量存储于减量称量及缺货报警单元的存储模块中；
    (2)对减量称量及缺货报警单元中的称量模块连接的自助货品区进行补货操作，并通过信息处理及传输单元的操作按键模块输入补货操作信息，由信息处理及传输单元的信息处理模块将补货操作信息传输给所述减量称量及缺货报警单元中的减量计算及缺货检测模块，所述减量计算及缺货检测模块收到补货操作信息后进行重量初始化操作，将减量称量及缺货报警单元中的存储模块存储的当前货品剩余重量和前次货品剩余重量同时更新为称量模块最新传输的当前货品剩余重量；
    (3)所述减量计算及缺货检测模块实时接收并存储所述称量模块传输来的当前货品剩余重量，接着将存储的前次货品剩余重量和当前货品剩余重量进行相减运算得到售出货品重量信息，然后用存储模块中预存的称量计算用基准参数数据和售出货品重量信息进行比较以确定售出货品重量信息是否有效，若有效则将售出货品重量信息传输给所述信息处理模块，同时将前次货品剩余重量更新为当前货品剩余重量，若无效则不进行数据传输；
    (4)所述信息处理模块接收到减量计算及缺货检测模块传输来的售出货品重量信息后，从信息处理及传输单元的存储器中存储的货品品种及单价信息中提取与售出货品品种对应的单价信息，并将单价信息与售出货品重量信息进行相乘运算得到售出货品价格信息，然后将售出货品价格信息传输给计费结算单元进行费用结算，同时由所述信息处理模块生成货品消费信息，并将货品消费信息传输给数据库管理系统以及信息处理及传输单元中的存储器和显示模块；
    (5)所述计费结算单元基于信息处理模块提供的售出货品价格信息进行费用结算，并在费用结算完成后将计费结束信息回传给所述信息处理模块；所述信息处理模块将计费结束信息传输给所述减量称重及缺货报警单元中的减量计算及缺货检测模块；
    (6)所述减量计算及缺货检测模块接收到计费结束信息后将其存储模块中存储的当前货品剩余重量和缺货报警阀值重量进行比较，若当前货品剩余重量值小于等于缺货报警阀值重量，则生成缺货报警信号并传输给报警模块进行缺货报警提示，否则循环执行步骤(3)至(6)；
    (7)用户进行补货操作时循环执行步骤(2)至(6)。
  11. 一种基于权利要求6所述自助减量称重计费系统进行的自助减量称重计费方法，其特征在于，包括以下步骤：
    (1)启动自助减量称重计费系统，其中的信息处理及传输单元通过数据库管理系统获取称量计算用基准参数数据、缺货报警阀值重量、货品品种及单价信息，将货品品种及单价信息存储于信息处理及传输单元的存储器中，将称量计算用基准参数数据及缺货报警阀值重量存储于减量称量及缺货报警单元的存储模块中；
    (2)对减量称量及缺货报警单元中的称量模块连接的自助货品区进行补货操作，并通过信息处理及传输单元的操作按键模块输入补货操作信息，由信息处理及传输单元的信息处理模块将补货操作信息传输给所述减量称量及缺货报警单元中的减量计算及缺货检测模块，所述减量计算及缺货检测模块收到补货操作信息后进行重量初始化操作，将减量称量及缺货报警单元中的存储模块存储的当前货品剩余重量和前次货品剩余重量同时更新为称量模块最新传输的当前货品剩余重量；
    (3)所述减量计算及缺货检测模块实时接收并存储所述称量模块传输来的当前货品剩余重量，接着将存储的前次货品剩余重量和当前货品剩余重量进行相减运算得到售出货品重量信息，然后用存储模块中预存的称量计算用基准参数数据和售出货品重量信息进行比较以确定售出货品重量信息是否有效，若有效则将售出货品重量信息传输给所述信息处理模块，同时将前次货品剩余重量更新为当前货品剩余重量，若无效则不进行数据传输；
    (4)所述信息处理模块接收到减量计算及缺货检测模块传输来的售出货品重量信息后，从信息处理及传输单元的存储器中存储的货品品种及单价信息中提取与售出货品品种对应的单价信息，并将单价信息与售出货品重量信息进行相乘运算得到售出货品价格信息，然后将售出货品价格信息传输给计费结算单元进行费用结算，同时由所述信息处理模块生成货品消费信息，并将货品消费信息传输给数据库管理系统以及信息处理及传输单元中的存储器和显示模块；
    (5)所述计费结算单元基于信息处理模块提供的售出货品价格信息进行费用结算，并在费用结算完成后将计费结束信息回传给所述信息处理模块；所述信息处理模块将计费结束信息传输给所述减量称重及缺货报警单元中的减量计算及缺货检测模块；
    (6)所述减量计算及缺货检测模块接收到计费结束信息后将其存储模块中存储的当前货品剩余重量和缺货报警阀值重量进行比较，若当前货品剩余重量值小于等于缺货报警阀值重量，则生成缺货报警信号并传输给报警模块进行缺货报警提示，否则循环执行步骤(3)至(6)；
    (7)用户进行补货操作时循环执行步骤(2)至(6)。
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