CN1866269A - RFID device for refrigerator - Google Patents
RFID device for refrigerator Download PDFInfo
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- CN1866269A CN1866269A CN 200610079621 CN200610079621A CN1866269A CN 1866269 A CN1866269 A CN 1866269A CN 200610079621 CN200610079621 CN 200610079621 CN 200610079621 A CN200610079621 A CN 200610079621A CN 1866269 A CN1866269 A CN 1866269A
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- reader
- label
- refrigerator
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Abstract
The disclosed RFID device for fridge comprises: a MPU (1), a LCD screen (2) to show the final inquired food information, a power management unit (3), a reader (4) to emit RF signal by its built-in antenna, a crystal oscillator (5), a keyboard (6), a reset circuit (7), a real-time clock (8), a buzzer (9), a label (10) to generate induced current when entering emission antenna working area and be activated to send information, and the system bus extension. This invention is benefit to food safety management.
Description
Technical field
The invention belongs to the EDP technology field, particularly a kind of radio frequency identification device.
Background technology
RFID (Radio Frequency Identification) i.e. is " radio frequency identification technology ", be a kind of contactless automatic identification technology, it adopts the noncontact mode by radiofrequency signal, automatically recognition objective object and obtain related data need not manual intervention.As the wireless version of bar code, rfid system has the not available waterproof of bar code, antimagnetic, low temperature resistant, long service life, read that distance is big, the canned data change waits advantage freely on the label, can work in various rugged surroundings.Its application will greatly reduce the logistics transportation of article and the expense of stock control, bring revolutionary variation for industries such as retail, logistics.
The RFID technology utilizes wireless radio frequency mode to carry out the noncontact bidirectional data transfers between reader and label (radio-frequency card), to reach the purpose of Target Recognition and exchanges data.Abroad, REID has been widely used in various fields such as industrial automation, business automation, communications and transportation control and management, label (radio-frequency card) is widely used in systems such as public transport, subway Fare Collection System, parking fee collective system, gate control system, attendance checking system and shopping charge, almost dabbles the every bit of people's life.In addition, RFID can provide efficient, detailed control to each part kinds of goods in potential huge supply chain network, guarantees from the farm supply of the whole food of consumer's refrigerator.
Along with growth in the living standard, the food in the refrigerator is more and more, and busy people can accurately not understand the food information in the refrigerator, causes blindly purchase, food to surpass wasting phenomenons such as shelf-life, has endangered health, has destroyed living environment.In order to allow more useful the playing a role of refrigerator, avoid the generation of above problem, the RFID device carries out organic the combination with software with hardware technology, wireless radio-frequency is applied on the refrigerator to realize obtaining, handling of food information and communicates by letter recognition function automatically such as show, the edible time of adjusting food for the consumer provides scientific guidance, carries out the safety management of food under prerequisite cheaply.
Summary of the invention
The purpose of this invention is to provide a kind of RFID device that is applied to refrigerator.The rfid system that reader, antenna and label constituted of this device, except the universal performance that should possess above introduction, also, provide keyboard to allow the user control food turnover situation, filled up domestic refrigerator carries out food control by the low-cost wireless radio-frequency technique blank in conjunction with China's national situation; Information such as the turnover of food, shelf-life in this device recording refrigerator, the user carries out the modification and the control of food information by keyboard, and is easy and simple to handle, easily left-hand seat, and the relevant information of inquiring about food by LCDs.
The present invention includes microprocessor, LCDs, power management, reader, crystal oscillator, keyboard, reset circuit, real time clock, hummer, label and system bus expansion; Wherein the port of LCDs correspondence connects the DB0～DB7 port of microprocessor, the corresponding PON that connects little processing of the port of power management, POFF, the P5V port, the corresponding DIN that connects microprocessor of the port of reader, DOUT, SCLOCK, FSK_RSSI, the M_ERR port, the corresponding XTAL1 that connects microprocessor of the port of crystal oscillator, the XTAL2 port, corresponding DB0～the DB7 that connects microprocessor of the port of keyboard, P0～P2 port, the corresponding RESET port that connects microprocessor of the port of reset circuit, the corresponding DCLK that connects microprocessor of the port of real time clock, DSDA port, the input of hummer utilize the GPIO mouth BELL control of CPU.
The present invention is the high-performance radio frequency system that wireless radio-frequency, mobile computing are combined.Reader sends the radiofrequency signal of certain frequency by built-in emitting antenna, produces induction current when label enters the emitting antenna perform region, and label obtains energy and is activated, and information such as self coding are sent by blocking built-in transmitting antenna; System's receiving antenna receives the carrier signal of sending from label, be sent to reader through the antenna adjustments device, reader carries out the demodulation sign indicating number to the signal that receives and delivers to the backstage main system then and carry out relevant treatment, be stored in the user data conservation zone, inquire about the relevant information of food at last by LCDs.
The present invention is integrated single-chip microprocessor MCU, RFID radio-frequency unit and LCD and keyboard etc., cost is low, simple to operate, has solved the difficult problem of consumer's food safety management, has filled up domestic refrigerator carries out food control by the low-cost wireless radio-frequency technique blank; Be mainly used in the collection of carrying out food information on the refrigerator, cooperate back-end data management and analysis software can make up the management system of a cover science, intelligence, make the information of food in consumer's grasp refrigerator promptly and accurately, avoid unnecessary waste, guarantee the health of human body, protected physical environment; Be make the information household appliances operator in intense market competition the application of advanced technology, meet consumers' demand, be in the invincible position, obtain the higher economic benefit and the ideal tools of social benefit.
Description of drawings
Accompanying drawing 1 is the functional block diagram of the embodiment of the invention
Accompanying drawing 2 is the logic theory block diagram of the embodiment of the invention
Accompanying drawing 3 is the CPU schematic diagram of the embodiment of the invention
Accompanying drawing 4 is the reader schematic diagram of the embodiment of the invention
Accompanying drawing 5 is the peripheral circuit schematic diagram of the embodiment of the invention
Accompanying drawing 6 is the electric power management circuit schematic diagram of the embodiment of the invention
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are specifically described:
With reference to the accompanying drawings 1,2, the embodiment of the invention comprises microprocessor (1), LCDs (2), power management (3), reader (4), crystal oscillator (5), keyboard (6), reset circuit (7), real time clock (8), hummer (9), label (10) and system bus expansion; Wherein the port of LCDs (2) correspondence connects the DB0～DB7 port of microprocessor (1), the corresponding PON that connects microprocessor (1) of the port of power management (3), POFF, the P5V port, the corresponding DIN that connects microprocessor (1) of the port of reader (4), DOUT, SCLOCK, FSK_RSSI, the M_ERR port, the corresponding XTAL1 that connects microprocessor (1) of the port of crystal oscillator (5), the XTAL2 port, corresponding DB0～the DB7 that connects microprocessor (1) of the port of keyboard (6), P0～P2 port, the corresponding RESET port that connects microprocessor (1) of the port of reset circuit (7), the corresponding DCLK that connects microprocessor (1) of the port of real time clock (8), DSDA port, the input of hummer (9) utilize the GPIO mouth BELL control of CPU.
With reference to the accompanying drawings 3～6, in embodiments of the present invention, reader (4) is used for reading and write the information in the label (10), and sends information to the P89LV51RD2BBC system; Crystal oscillator (5) provides work clock for system; Keyboard (6) provides the platform of an ease of Use for the user; Reset circuit (7) can be finished system power-on reset; Real time clock (8) is used for providing date and time to system, and the operator can obtain the current accurate running time; Hummer (9) is used for the alarm user; Label (10) is made up of coupling element and chip, and each label has unique electronic code, attached to identifying destination object on the object; Reader (4) carries out the transmission of radiofrequency signal with label (10) is inner by antenna; Power management (3) needs the peripheral circuit power supply of power supply to P89LV51RD2BBC and other; Data bus, address bus and necessary control bus have been drawn in the system bus expansion, are convenient to the particular demands of user according to self, the expansion peripheral circuit.
The components and parts model that the embodiment of the invention adopted is as shown in the table:
| The components and parts title | Model | Encapsulation |
| CPU | P89LV51RD2BBC | TQFP44 |
| Clock chip | DS1302 | TSSOP8 |
| Power management chip | LP3985-3.3 | SOT23-5 |
| Power management chip | LP3985-4.7 | SOT23-5 |
| Power management chip | LP3981 | PPL6 |
| Photodiode | PD204-6C | LED |
| Reader | S6700 | TSSOP32 |
| Label | Tar-it |
Function that the embodiment of the invention has reached and target:
(1) reader adopts the noncontact mode to carry out the collection of information by radiofrequency signal, need not manual intervention;
(2) data storage capacity reaches 66KB (64KB-FLASH, 2KB-SDRAM) in the main frame, can satisfy the storage space of the needed data of the various foods of user storage fully.
(3) support energy-conservation setting.The user can be provided with automatic shutdown time, sound ON/OFF etc.When not having the user to operate under the open state, system changes battery saving mode automatically over to; Never user's operation in the time of setting, system shuts down automatically with energy-conservation after can preserving user data;
(4) high-speed moving object can be discerned and also a plurality of labels can be discerned simultaneously, swift and convenient to operate;
(5) waterproof, antimagnetic, low temperature resistant, long service life; Low-power consumption, electronics antijamming capability are strong; Can work in various rugged surroundings;
(6) the canned data change waits advantage freely on the label.
Concrete technical indicator:
| | CPU | 8 CMOS microprocessors | |
| Internal storage | RAM：2KB FLASH ROM：64KB | ||
| Reader | Standard communication protocol | ASIC communication protocol and ISO/IEC 15693-3 | |
| Read distance | 150-250mm | ||
| Label | Tar-it series | ASIC communication protocol and ISO/IEC 15693-3 | |
| Power supply | | 4 joint rechargeable nickel-hydrogen batteries | |
| The main battery life-span | About 100 hours (normal temperature, bias light are closed, per 10 seconds read one time smart card) | ||
| Screen size | Size and size | The LCD LCDs; 4.5 inch; Every | |
| Working environment | Temperature | -15 to 40 degrees centigrade | |
| Surround lighting | Artificial light: 4844lux; Natural light: 86112lux | ||
| Electromagnetic compatibility standard | FCC Part 15Class A，CN410 |
Claims (2)
1. a RFID device that is applied to refrigerator is characterized in that: microprocessor (1), LCDs (2), power management (3), reader (4), crystal oscillator (5), keyboard (6), reset circuit (7), real time clock (8), hummer (9), label (10) and system bus expansion; Wherein the port of LCDs (2) correspondence connects the DB0～DB7 port of microprocessor (1), the corresponding PON that connects microprocessor (1) of the port of power management (3), POFF, the P5V port, the corresponding DIN that connects microprocessor (1) of the port of reader (4), DOUT, SCLOCK, FSK_RSSI, the M_ERR port, the corresponding XTAL1 that connects microprocessor (1) of the port of crystal oscillator (5), the XTAL2 port, corresponding DB0～the DB7 that connects microprocessor (1) of the port of keyboard (6), P0～P2 port, the corresponding RESET port that connects microprocessor (1) of the port of reset circuit (7), the corresponding DCLK that connects microprocessor (1) of the port of real time clock (8), DSDA port, the input of hummer (9) utilize the GPIO mouth BELL control of CPU.
2. the RFID device that is applied to refrigerator according to claim 1 is characterized in that: also comprise the expansion of hummer and system bus; The input of hummer (9) utilizes the GPIO mouth BELL control of CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610079621 CN1866269A (en) | 2006-04-28 | 2006-04-28 | RFID device for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610079621 CN1866269A (en) | 2006-04-28 | 2006-04-28 | RFID device for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1866269A true CN1866269A (en) | 2006-11-22 |
Family
ID=37425287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610079621 Pending CN1866269A (en) | 2006-04-28 | 2006-04-28 | RFID device for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1866269A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334848B (en) * | 2007-06-28 | 2010-09-01 | 海尔集团公司 | Cold chain monitoring system and refrigeration equipment |
| CN104865851A (en) * | 2015-03-20 | 2015-08-26 | 深圳市冠旭电子有限公司 | Light variation-based energy saving method and device |
| CN108792396A (en) * | 2018-07-23 | 2018-11-13 | 上海快联门业有限公司 | A kind of landing platform and warehousing system |
| CN113915837A (en) * | 2021-09-27 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and control method thereof |
| WO2023040846A1 (en) * | 2021-09-14 | 2023-03-23 | 海信冰箱有限公司 | Refrigerator and control method therefor |
-
2006
- 2006-04-28 CN CN 200610079621 patent/CN1866269A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334848B (en) * | 2007-06-28 | 2010-09-01 | 海尔集团公司 | Cold chain monitoring system and refrigeration equipment |
| CN104865851A (en) * | 2015-03-20 | 2015-08-26 | 深圳市冠旭电子有限公司 | Light variation-based energy saving method and device |
| CN108792396A (en) * | 2018-07-23 | 2018-11-13 | 上海快联门业有限公司 | A kind of landing platform and warehousing system |
| WO2023040846A1 (en) * | 2021-09-14 | 2023-03-23 | 海信冰箱有限公司 | Refrigerator and control method therefor |
| CN113915837A (en) * | 2021-09-27 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and control method thereof |
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