CN107037468A - A kind of multi-functional instrument for Rare Book Use case - Google Patents
A kind of multi-functional instrument for Rare Book Use case Download PDFInfo
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- CN107037468A CN107037468A CN201710375041.2A CN201710375041A CN107037468A CN 107037468 A CN107037468 A CN 107037468A CN 201710375041 A CN201710375041 A CN 201710375041A CN 107037468 A CN107037468 A CN 107037468A
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- 238000013500 data storage Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 5
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
A kind of multi-functional instrument for Rare Book Use case, including：Main control unit module, memory cell module, ambient parameter acquisition module, GPS+GSM locating modules, WIFI communication module, fingerprint identification module, electric control lock drive control module and interface unit module；Wherein described main control unit module includes microcontroller, the memory cell module includes SD card, flash storage and ferroelectric memory, the ambient parameter acquisition module includes Temperature Humidity Sensor, pressure sensor, the GPS+GSM locating modules include gsm wireless module, SIM card and the positioning of the GPS/ Big Dippeves, and the interface unit module is used as reserve battery power inlet using USB Type C interface.The present invention realizes ambient parameter collection, storage, transmission, detects function, outdoor GPS location function with Rare Book Use case indoor positioning, and be used as the unblock of electron key control Rare Book Use case coded lock.
Description
Technical field
The invention belongs to Techniques of Relics Protection field, and in particular to a kind of to apply the ancient books worked under high electromagnetic environment to protect
The multi-functional instrument of protecting box system.
Background technology
Ancient books refers mainly to the books do not printed using modern printing technology, and the material of books also includes bamboo slip used for writing on during ancient times, silks and paper
Etc..With the growth in age, the paper of ancient books can gradually turn to be yellow, embrittlement, at the same can also be damaged by worms, damaged by rats, nature or
Artificial damage.Due to ancient books not reproducible, the protection work of ancient books is particularly important.Ancient books container solve ancient books insect prevention,
Moistureproof the problems such as, while also extending the life-span of ancient books, it is to avoid the material such as paper, bamboo slip used for writing on during ancient times turned to be yellow due to matter of time, rotten
The problems such as erosion.
Rare Book Use case system realizes the defencive function of the historical relics such as ancient books, but due to the particularity and storage ring of ancient books
The change in border, system is needed to carry out it ambient parameter collection, environmental monitoring, and ancient books site is positioned.
The content of the invention
Present invention solves the technical problem that being：The present invention realizes ambient parameter collection, storage, transmission, is protected with ancient books
Protecting box indoor positioning detects function, in higher electromagnetic shielding environment internal box positioning and outdoor GPS location function, and is used as electricity
The unblock of sub- key controller Rare Book Use case coded lock.
The invention discloses：A kind of multi-functional instrument for Rare Book Use case, including：Main control unit module, memory cell
Module, ambient parameter acquisition module, GPS+GSM locating modules, WIFI communication module, fingerprint identification module, electric control lock driving control
Molding block and interface unit module；Wherein described main control unit module includes microcontroller, for controlling and coordinating whole system
The action of system, the memory cell module includes SD card, flash storage and ferroelectric memory, for data storage information,
The ambient parameter acquisition module includes Temperature Humidity Sensor, pressure sensor, for monitoring Rare Book Use case internal environment, institute
Stating GPS+GSM locating modules includes gsm wireless module, SIM card and the positioning of the GPS/ Big Dippeves, for positioning, the WIFI communication
Module includes the remote WIFI module of external antenna, and the data of storage inside are carried out by wireless communication protocol and external equipment
Data and instruction interaction transmission, the fingerprint identification module are used for fingerprint typing, image procossing, fingerprint contrast, search and template
Storage, the electric control lock drive control module is used for door lock complete monitoring, and the interface unit module is connect using USB Type-C
Mouth is as reserve battery power inlet, and the USB Type-C interfaces are alternatively arranged as wire transmission, system testing.
Further, the memory cell module data storage information include fingerprint, ambient parameter, article access record,
Operation note, positional information, wherein SD card carry out classified and stored with document form to Various types of data, and flash storage is to system
Parameter, firmware updating parameter is stored, and ferroelectric memory is stored to ambient parameter, the micro-control of the main control unit module
Device processed was connected SDIO interfaces with memory and was connected with SD card, is connected, passed through with flash storage by SPI or I2C interfaces
SPI interface is connected with ferroelectric memory.
Further, the microcontroller of the main control unit module using two-way I2C EBIs respectively with ambient parameter
The Temperature Humidity Sensor of acquisition module, pressure sensor connection, I2C EBIs are connected with Temperature Humidity Sensor all the way, another
Road I2C interface bus is connected with pressure sensor, and Temperature Humidity Sensor, pressure sensor detect temperature under the control of the micro-controller
Degree, humidity and barometric information.
Further, the GPS+GSM locating modules and WIFI communication module are transmitted using external antenna.
Further, the interface unit module uses USB Type-C interfaces as reserve battery power inlet, described
Type-C interfaces support USB interface double-side plug-in.
Further, the multi-functional instrument supports that external dc is powered or reserve battery is powered, and reserve battery is outside straight
Stream power supply is enabled automatically when disconnecting, and while switching power supply mode, multi-functional instrument enables different Working moulds according to power supply state
Formula.
Further, in the case of direct current supply, multi-functional instrument enables fully functional model, including ambient parameter collection, close
Code lock function, the locking bit functions of GPS+SIM, WIFI communication function；Under reserve battery electric power thus supplied, GPS+SIM cards are only enabled
Positioning function pattern.
Further, the multi-functional instrument is manufactured using aluminum alloy material surface wire drawing oxidation technology, the ambient parameter
Temperature Humidity Sensor, pressure sensor sensor in acquisition module are arranged on the multi-functional instrument housing corner, internal and main
Body is isolated, and is designed using three-dimensional hollow out, sensor cavity is fully blended with monitoring of environmental air.
Beneficial effects of the present invention：
1. the present invention realizes the collection of Rare Book Use case ambient parameter, storage, transmission, have to the protective capability of ancient books bright
Aobvious raising；Secondly there is the present invention Rare Book Use case indoor positioning to detect function, and control Rare Book Use as electron key
The unblock of case coded lock.
2. the present invention improves casing outdoor positioning precision and anti-electromagnetic interference capability by antenna scheme；In higher electromagnetism
Shading ring has casing positioning and outdoor GPS location function within the border.
3. the present invention realizes the abilities such as hicap data acquisition, backup, transmission by memory cell module, have
The features such as low-power consumption, Large Copacity, extendible capacity.
4. the present invention realizes emergency service problem of the multi-functional instrument under structure space limited situation.
Brief description of the drawings
A kind of multi-functional instrument theory diagrams for Rare Book Use system of Fig. 1.
Embodiment
Except embodiment described below, the present invention can also have other embodiments or implement by different way.Therefore,
It should be known that detailed the invention is not limited in the structure of described in the following description or shown in the accompanying drawings part
Situation.When only introducing one embodiment here, claim is not limited to the embodiment.
Hardware composition for the multi-functional instrument of Rare Book Use system includes：Main control unit module, memory cell module, ring
Border parameter collection module, GPS+GSM locating modules, WIFI communication module, fingerprint identification module, electric control lock drive control module,
Interface unit module.
Main control unit module：Main control unit is responsible for controlling and coordinates the action of whole equipment, performs data operation processing, patrols
The tasks such as judgement are collected, to MCU data computing capability, dominant frequency efficiency, peripheral hardware resource requirement is higher, encapsulated from 144 pin TQFP
STM32F103 microcontrollers as multi-functional instrument MCU master controls.
STM32F103 is a microcontroller of the ST Microelectronics based on ARM core designs.
Memory cell module：Multi-functional instrument data storage information is related to fingerprint, ambient parameter, article access record, operation
The contents such as record, positional information, species is various, and longer accumulation data also will be bigger the time, therefore to solve the problems, such as data storage,
Multi-functional instrument design is main using Large Copacity SD (TF) cards, and classified and stored is carried out to Various types of data with document form.
For systematic parameter, the important parameter such as firmware updating is stored using external flash storage, it is ensured that data
It is safe and reliable.And ambient parameter repeats erasable due to needing, operating frequency is high, very high to the performance requirement of memory carrier, therefore
The design is stored using ferroelectric memory (F-RAM) to ambient parameter.The type memory read/write life-span may be up to 10,000,000,000
It is secondary, data keep 150 years it is constant, write-in need not perform erasing operation, really realize zero-waiting, so that multi-functional instrument is effectively ensured
The real-time of ambient parameter monitoring.
Ambient parameter is with 30 bytes of an actual frame, and once, Coutinuous store is calculated for 2 hours, total capacity demand for storage in 1 second
For 216Kbyte (frame × 2 hour of 30 bytes × 3600=216000 byte).Therefore, from the iron that capacity is 256K (2Mbit)
Electrical storage FM25V20A can meet memory space requirements.The memory uses SPI interface mode, highest operational clock frequency
Up to 40MHz.
The microcontroller of main control unit module was connected SDIO interfaces with memory and was connected with SD card, was connect by SPI or I2C
Mouth is connected with flash storage, is connected by SPI interface with ferroelectric memory.
Ambient parameter acquisition module：Including Temperature Humidity Sensor, pressure sensor.It is wherein reduction multi-functional instrument space body
Product demand, temperature sensor and humidity sensor are designed from high integration integrated digital Temperature Humidity Sensor.Each many work(
Can instrument 1 Temperature Humidity Sensor of configuration and 1 pressure sensor.
Choice of Sensors is as follows：SHT35 digital humiture of the Temperature Humidity Sensor from the auspicious benefactor department production of Switzerland's flourishing age
Sensor.Pressure sensor selects the MS5803-02BA absolute pressure transducers that Jing Liang electronics corporations of the U.S. produce.
Temperature Humidity Sensor, pressure sensor and host interface mode design as follows, and master control uses two-way I2C EBIs
It is connected respectively with Temperature Humidity Sensor, pressure sensor, I2C EBIs are connected with Temperature Humidity Sensor all the way, another road I2C
Interface bus is connected with pressure sensor.Temperature Humidity Sensor, pressure sensor detection temperature, wet under the control of the micro-controller
Degree and barometric information.
GPS+GSM locating modules：Including GSM (SIM900a) wireless module, SIM (China Mobile) cards and the GPS/ Big Dippeves
Position three parts.
Gsm wireless module has function of receiving and sending short message, can send out a short message to the equipment of oneself, control is acted,
During equipment fault, it can send out warning message.
SIM card uses China Mobile common SIM cards.
The ATK-S1216 modules of GPS+ Big Dipper bi-locating functions：ATK-S1216F8GPS/ big dipper modules, are ALIENTEK
The module of a high-performance GPS/ Big Dippeves phase compatibility of production, module core uses SkyTraq companies S1216F8-BD modules, tool
There are 167 passages, follow the trail of sensitivity and be up to -165dBm, measurement output frequency reaches as high as 20Hz.
WIFI communication module：The data of data multi-functional instrument storage inside are passed through wireless communication protocol by WIFI communication module
Data are carried out with the external equipment such as handheld terminal, central control system and solenoid valve controller and instruction interaction is transmitted.WIFI communication
Module uses the remote WIFI module of ESP8266-S2 external antennas, and the onboard socket of wireless module uses IPex, space-consuming compared with
It is small.The module supports the IEEE802.11b/g/n agreements of standard, complete ICP/IP protocol stack.User can use the module
Network savvy is added for existing equipment, independent network controller can also be built.
Module has three kinds of mode of operations.Module can reach the wireless terminal devices such as mobile phone/PAD/ computers as ap mode
In the case of network connection, quickly access module and carry out data transfer；It is a kind of conventional networking mode as STA mode,
It is made up of a router AP and many STA, is characterized in that AP is in being in communication with each other by AP between Central Position, STA
Forwarding is completed；Module can enable AP, STA, i.e. module simultaneously while supporting an AP interface, a STA interface.
Fingerprint identification module：Fingerprint module selects ZAZ-060 fingerprint identification modules.The module using high-speed dsp processor as
Core, with reference to the capacitive fingerprint sensor with independent intellectual property right, with fingerprint typing, image procossing, fingerprint contrast, search
With template storage etc. function.
Electric control lock drive control module：This programme design alternative powers off lock-up type reaction type electronics mortise lock SL-133, work
Voltage 12V, unlocking starting current 830mA, long-time supply current 160mA.The current door lock state of real-time perception, prevents malice disconnected
Electric-opening chamber door, realizes door lock complete monitoring, fully ensures article safety.
Interface unit module：Multi-functional instrument design is used as reserve battery power inlet using USB Type-C interfaces.Type-
The maximum feature of C interface is exactly to support USB interface double-side plug-in.In addition, the interface is alternatively arranged as wire transmission, system testing etc.
Reservation function interface is used.
For Rare Book Use system multi-functional instrument using aluminum alloy material surface wire drawing oxidation technology manufacture, without using appoint
What pigmented finiss, chemical substance, prevents structural material volatilization dusty gas.Sensor is arranged on housing corner, internal and main body
Isolation, is designed using three-dimensional hollow out, sensor cavity is fully blended with monitoring of environmental air, air-flow is unobstructed, warm and humid to ensure
Spend sensor accuracy class and sensitivity obtains optimal effectiveness.
Because Rare Book Use case internal layer is embedded in honeycomb net, to GPS+GSM locating modules and WIFI communication module
Signal intensity is also easy to produce compared with strong jamming, and therefore, GPS+GSM locating modules and WIFI communication module are carried out using external antenna
Transmission, is designed with reference to casing using built-in type, to ensure signal intensity and casing overall aesthetic degree, enhancing antenna it is anti-interference with
Receive star ability.
Multi-functional instrument is powered using external dc and reserve battery is powered two kinds of power supply modes；When outside provides direct current supply
When, equipment is preferred from direct current supply mouthful power taking, and when direct current supply mouthful is powered off, equipment enables reserve battery, multi-functional to realize
The power-off protection and positioning function of instrument.
The multi-functional instrument operation principle of Rare Book Use system is as follows：
(1) data acquisition：
The multi-functional instrument environmental data of collection in every 1 second, including：Temperature, humidity, pressure, are saved in local and record
Acquisition time, while performing a data cover operation for every 2 hours；
Under stored condition, the data of the last collection are transmitted at multi-functional instrument interval for 0.5 hour to central control system；
Under charge and discharge gaseity, multi-functional instrument transmits the data of this collection to central control system in real time.
(2) electron key function：
Multi-functional instrument receives the finger print information of central control system transmission, and is transmitted to fingerprint module and is stored.
Visitor carries out fingerprint matching by fingerprint identification module, and multi-functional instrument is according to matching result, by the logic journey set
Sequence judges whether to open coded lock, recording operation information, and unlocking result is fed back into central control system.
After coded lock is re-closing off, upper lock signal and operating time are fed back to central control system by multi-functional instrument.
Multi-functional instrument can be written and read and wipe to the finger print information in coded lock according to central control system logic routine instructions
Operation.
(3) access article operation note：
After Rare Book Use case chamber door is opened, the automatic record operating time of multi-functional instrument, and receive and storage handheld terminal biography
Books title, number information and operation content in defeated case.
(4) mode of operation：
Multi-functional instrument supports external dc to power or reserve battery is powered, reserve battery when outside direct current supply disconnects oneself
It is dynamic to enable.While switching power supply mode, multi-functional instrument enables different mode of operations according to power supply state.Multi-functional instrument also may be used
Mode of operation is set by handheld terminal.
In the case of direct current supply, multi-functional instrument enables fully functional model (ambient parameter collection, function of cipher lock, GPS+
SIM card positioning function, WIFI communication function)；Under reserve battery electric power thus supplied, the locking bit function patterns of GPS+SIM are only enabled.
Normal operating conditions, multi-functional instrument SIM Cross supports actively and passively two kinds of mode of operations.Active work mode：
When external dc is powered, SIM card sends a positional information in every 10 minutes toward central control system；And enable battery and power then SIM card
A positional information is sent toward central control system within every 30 minutes；Passive work mode：Any reception of multi-functional instrument is ordered to SIM card
Make after information, positional information is sent to central control system.
Claims (8)
1. a kind of multi-functional instrument for Rare Book Use case, it is characterised in that including：Main control unit module, memory cell module,
Ambient parameter acquisition module, GPS+GSM locating modules, WIFI communication module, fingerprint identification module, electric control lock drive control module
And interface unit module；Wherein described main control unit module includes microcontroller, for controlling and coordinating the dynamic of whole system
Make, the memory cell module includes SD card, flash storage and ferroelectric memory, for data storage information, the ring
Border parameter collection module includes Temperature Humidity Sensor, pressure sensor, for monitoring Rare Book Use case internal environment, the GPS+
GSM locating modules include gsm wireless module, SIM card and the positioning of the GPS/ Big Dippeves, for positioning, the WIFI communication module bag
Include the remote WIFI module of external antenna, by the data of storage inside by wireless communication protocol and external equipment carry out data and
Instruction interaction is transmitted, and the fingerprint identification module is used for fingerprint typing, image procossing, fingerprint contrast, search and template storage, institute
Stating electric control lock drive control module is used for door lock complete monitoring, and the interface unit module is using USB Type-C interfaces as standby
Battery power inlet is used, the USBType-C interfaces are alternatively arranged as wire transmission, system testing.
2. multi-functional instrument as claimed in claim 1, it is characterised in that the memory cell module data storage information includes referring to
Line, ambient parameter, article access record, operation note, positional information, wherein SD card are returned with document form to Various types of data
Class is stored, and flash storage is stored to systematic parameter, firmware updating parameter, and ferroelectric memory is deposited to ambient parameter
Storage, microcontroller and the memory of the main control unit module were connected SDIO interfaces and were connected with SD card, connect by SPI or I2C
Mouth is connected with flash storage, is connected by SPI interface with ferroelectric memory.
3. multi-functional instrument as claimed in claim 1, it is characterised in that the microcontroller of the main control unit module uses two-way
Temperature Humidity Sensor, the pressure sensor of I2C EBIs respectively with ambient parameter acquisition module are connected, wherein, I2C is total all the way
Line interface is connected with Temperature Humidity Sensor, and another road I2C interface bus is connected with pressure sensor, Temperature Humidity Sensor, pressure
Sensor detection temperature, humidity and barometric information under the control of the micro-controller.
4. multi-functional instrument as claimed in claim 1, it is characterised in that the GPS+GSM locating modules and WIFI communication module
It is transmitted using external antenna.
5. multi-functional instrument as claimed in claim 1, it is characterised in that the interface unit module uses USBType-C interfaces
As reserve battery power inlet, the Type-C interfaces support USB interface double-side plug-in.
6. multi-functional instrument as claimed in claim 4, it is characterised in that the multi-functional instrument supports external dc to power or standby
Battery is powered, and reserve battery is enabled automatically when outside direct current supply disconnects, switching power supply mode while, multi-functional instrument according to
Power supply state enables different mode of operations.
7. multi-functional instrument as claimed in claim 5, it is characterised in that in the case of direct current supply, multi-functional instrument enables full work(
Energy pattern, including ambient parameter collection, function of cipher lock, the locking bit functions of GPS+SIM, WIFI communication function；In reserve battery
Under electric power thus supplied, the locking bit function patterns of GPS+SIM are only enabled.
8. multi-functional instrument as claimed in claim 1, it is characterised in that the multi-functional instrument uses aluminum alloy material surface wire drawing
Oxidation technology is manufactured, and the Temperature Humidity Sensor, pressure sensor sensor in the ambient parameter acquisition module are arranged on described
Multi-functional instrument housing corner, inside isolates with main body, is designed using three-dimensional hollow out, sensor cavity is filled with monitoring of environmental air
Divide blending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710375041.2A CN107037468A (en) | 2017-05-24 | 2017-05-24 | A kind of multi-functional instrument for Rare Book Use case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710375041.2A CN107037468A (en) | 2017-05-24 | 2017-05-24 | A kind of multi-functional instrument for Rare Book Use case |
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| CN107037468A true CN107037468A (en) | 2017-08-11 |
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| CN201710375041.2A Pending CN107037468A (en) | 2017-05-24 | 2017-05-24 | A kind of multi-functional instrument for Rare Book Use case |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813839A (en) * | 2017-11-22 | 2019-05-28 | 江苏文心古籍数字产业有限公司 | A kind of ancient books fragmentation quality inspection device fixed structure |
| CN109870746A (en) * | 2019-03-19 | 2019-06-11 | 南京信息工程大学 | A kind of Design of meteorological data collection based on Beidou technology |
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| CN102917063A (en) * | 2012-10-23 | 2013-02-06 | 山东省计算中心 | Portable environment-friendly parameter acquiring device based on Beidou navigation system |
| US20150215443A1 (en) * | 2014-01-24 | 2015-07-30 | Lg Electronics Inc. | Mobile terminal and method of controlling the same |
| US20170010659A1 (en) * | 2014-03-18 | 2017-01-12 | Samsung Electronics Co., Ltd | Input/output interface control method and electronic apparatus performing same |
| CN105788211A (en) * | 2016-03-02 | 2016-07-20 | 华东师范大学 | Portable positionable multi-interface data measuring, collecting and transmitting instrument |
| CN105823516A (en) * | 2016-05-25 | 2016-08-03 | 北京北方节能环保有限公司 | Soil moisture equipment acquisition instrument terminal and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109813839A (en) * | 2017-11-22 | 2019-05-28 | 江苏文心古籍数字产业有限公司 | A kind of ancient books fragmentation quality inspection device fixed structure |
| CN109870746A (en) * | 2019-03-19 | 2019-06-11 | 南京信息工程大学 | A kind of Design of meteorological data collection based on Beidou technology |
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