CN113973158A - Campus printer service system based on Internet of things - Google Patents

Campus printer service system based on Internet of things Download PDF

Info

Publication number
CN113973158A
CN113973158A CN202111128445.4A CN202111128445A CN113973158A CN 113973158 A CN113973158 A CN 113973158A CN 202111128445 A CN202111128445 A CN 202111128445A CN 113973158 A CN113973158 A CN 113973158A
Authority
CN
China
Prior art keywords
module
printer
internet
campus
things
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111128445.4A
Other languages
Chinese (zh)
Inventor
冷虎军
周伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Jinsuilong Information Technology Co ltd
Original Assignee
Guangzhou Jinsuilong Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Jinsuilong Information Technology Co ltd filed Critical Guangzhou Jinsuilong Information Technology Co ltd
Priority to CN202111128445.4A priority Critical patent/CN113973158A/en
Publication of CN113973158A publication Critical patent/CN113973158A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00204Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
    • H04N1/00209Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
    • H04N1/00222Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of image data generation or reproduction, e.g. scan-to-email or network printing
    • H04N1/00233Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of image data generation or reproduction, e.g. scan-to-email or network printing details of image data reproduction, e.g. network printing or remote image display
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16YINFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y40/00IoT characterised by the purpose of the information processing
    • G16Y40/10Detection; Monitoring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The invention discloses a campus printer service system based on the Internet of things. In the invention, the output end of the safety information monitoring module is connected with the input end of the internet of things transmission module, the output end of the internet of things transmission module is connected with the input end of the server module, the output end of the printer module is connected with the abnormality alarm module and the input end of the printer module, when the inside of the printer module breaks down, the WiFi positioning module is positioned through the WiFi inside, so that the fault information is sent to the receiving end of the maintenance terminal receiving module in time, maintenance personnel can receive the fault information in time, the printer is maintained, the waiting time of the equipment starting module when the fault happens is prolonged, more convenient printing service is provided for students, and meanwhile, the positioning technology of the WiFi positioning module is matched, so that the positioning information is more accurate, and the high-efficiency check of the maintenance personnel is facilitated, the maintenance efficiency is improved.

Description

Campus printer service system based on Internet of things
Technical Field
The invention belongs to the technical field of campus printers, and particularly relates to a campus printer service system based on the Internet of things.
Background
At present, college students have a large amount of file materials to be printed every year, and the workload of a printing shop is large; a printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. The indexes for measuring the quality of the printer comprise three items: print resolution, print speed and noise. There are many types of printers, and an impact printer and a non-impact printer are classified according to whether or not a printing element strikes paper. Full-font character printers and dot matrix character printers are classified according to the character structure to be printed. A line printer is divided into a serial printer and a line printer in such a manner that a line character is formed on a paper. According to the adopted technology, the printer is divided into a column type, a spherical type, an ink jet type, a thermal type, a laser type, an electrostatic type, a magnetic type, a light emitting diode type and the like.
However, when a common campus printer breaks down, a maintainer needs to be informed by a person to overhaul the printer, so that the overhauling efficiency is low, and the normal use of students is influenced.
Disclosure of Invention
The invention aims to: in order to solve the problem, a campus printer service system based on the Internet of things is provided.
The technical scheme adopted by the invention is as follows: the utility model provides a campus printer service system based on thing networking, includes equipment start module, security information monitoring module, thing networking transmission module, power module, server module, network connection module, printer module, unusual alarm module, data display device, wiFi orientation module, fault code record module, data transmission module, maintenance terminal receiving module, equipment start module's output is connected with security information monitoring module's input, security information monitoring module's output is connected with thing networking transmission module's input, thing networking transmission module's output is connected with server module's input, server module's output is connected with network connection module's input, network connection module's output is connected with printer module's input, printer module's output is connected with unusual alarm module with printer module's input And (4) an end.
In a preferred embodiment, a power input end of the server module is electrically connected to a power output end of the power supply module, and a standby charging power supply module is disposed inside the power supply module.
In a preferred embodiment, a WiFi positioning module is disposed inside the abnormality alarm module, an output end of the WiFi positioning module is connected to an input end of the fault code recording module, an output end of the fault code recording module is connected to an input end of the data sending module, and an output end of the data sending module is connected to an input end of the maintenance terminal receiving module.
In a preferred embodiment, the network connection module is connected to the network through a print server or a workstation; the network connection module is directly connected with a network and only receives commands and printing data transmitted by a printing server or a workstation through a parallel port or a serial port.
In a preferred embodiment, an interface is reserved inside the printer module to realize resource sharing; the information and resource sharing is realized by integrating with other systems, and the requirements of an information campus are met; for example, the system can be interfaced with a library management system, a educational administration system, a school office automation management system, an identity authentication system and the like.
In a preferred embodiment, the data display device automatically records the user name, when, where, on which machine what content is printed, the number of pages printed, copied, etc. can act as a deterrent to printing illegal content.
In a preferred embodiment, a monitoring function is arranged inside the safety information monitoring module; the functional module mainly meets the requirement of a user on safety, and has four branch functions of printing monitoring, environment monitoring, equipment monitoring and order management; the user can look over the printer current situation anytime and anywhere through operation campus sharing printer cell-phone end APP, can also look over the surveillance video of target user's use printer stage, manages safety protection system, detection ring border safety, can also monitor the abnormal operation of machine and make the warning and feed back.
In a preferred embodiment, a charging module is arranged inside the printer module, and the charging module accesses the Ethernet through a network expansion card or corresponding management software to communicate with the database server; the user firstly goes to the center of the all-purpose card to handle the card, register personal information and recharge, all the information is stored in the database, and then the user can swipe the card on the copier to print and copy; to ensure the safety and reliability of the whole system, the printing and copying process must include the following points: firstly, the opening of the copying machine must be controlled by the information of the user IC card, and only the user passing the authentication can take and print the copy; the printing and copying service carries out real-time deduction, namely, the card reader deducts the cost of one card from the IC card every time the copying machine copies one card; and thirdly, after the copying task is finished, operating the record flow back server to realize the synchronization of the IC card information and the database information.
In a preferred embodiment, each fixed AP node in the WiFi positioning module periodically transmits WiFi signals to the surrounding in the whole campus WiFi network, and stores the node name and position coordinates of the corresponding AP in the server; when other AP nodes in the area with known positions receive the signals of the AP nodes with the fixed positions, and the strength of the received signals is recorded; the positioning terminal sends the received signal strength to a background server, the server can calculate the relative path loss index of each path according to the received signal strength value and wireless equipment information stored in a database, then after the positioning terminal joins a campus network, the surrounding wifi signal strength, the SSID value and the average path loss index of the surrounding environment of each node are received, t test and median average filtering are carried out on the signal strength value, all the received signal strengths are sequenced, the node with high signal strength is selected as a primary positioning node, and finally the distance value is calculated according to a logarithmic distance loss model and the average path loss index; by the method, the distance value from the positioning terminal to the known WIFI can be obtained.
In a preferred embodiment, a receiving computer is arranged at the data output end of the maintenance terminal receiving module, and an operation end of the computer is monitored by full-time maintenance personnel.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the printer starting module, when a fault occurs inside the printer module, the WiFi positioning module is positioned through the WiFi inside, so that fault information is sent to the receiving end of the maintenance terminal receiving module in time, maintenance personnel can receive the fault information in time, the printer is maintained, waiting time of the equipment starting module when the fault occurs is prolonged, more convenient printing service is provided for students, and meanwhile, the positioning technology of the WiFi positioning module is matched, so that the positioning information is more accurate, efficient checking with the maintenance personnel is facilitated, and maintenance efficiency is improved.
2. In the invention, the opening of the internal printing and copying process of the printer module is controlled by the information of the user IC card, the IC card can be taken and printed only by registered legal users and the balance in the card is higher than a certain limit, and meanwhile, the copying task is finished, and the streamline passback server is operated and recorded to realize the synchronization of the information of the IC card and the information of the database, so that students can check the printed data information in time when using the IC card, thereby improving the transparency of the printed data, facilitating the use of the users and improving the convenience of the system.
Drawings
FIG. 1 is a general system block diagram of the present invention;
FIG. 2 is a block diagram of an abnormal alarm module system according to the present invention.
The labels in the figure are: the system comprises a device starting module, a 2 safety information monitoring module, a 3 Internet of things transmission module, a 4 power supply module, a 5 server module, a 6 network connection module, a 7 printer module, an 8 abnormity alarm module, a 9 data display device, a 10 WiFi positioning module, a 11 fault code recording module, a 12 data sending module and a 13 maintenance terminal receiving module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
With reference to figures 1-2 of the drawings,
a campus printer service system based on the Internet of things comprises an equipment starting module 1, a safety information monitoring module 2, an Internet of things transmission module 3, a power supply module 4, a server module 5, a network connection module 6, a printer module 7, an abnormity alarm module 8, a data display device 9, a WiFi positioning module 10, a fault code recording module 11, a data sending module 12 and a maintenance terminal receiving module 13, wherein the output end of the equipment starting module 1 is connected with the input end of the safety information monitoring module 2, the output end of the safety information monitoring module 2 is connected with the input end of the Internet of things transmission module 3, the output end of the Internet of things transmission module 3 is connected with the input end of the server module 5, the output end of the server module 5 is connected with the input end of the network connection module 6, and the output end of the network connection module 6 is connected with the input end of the printer module 7, the output end of the printer module 7 is connected with the input ends of an abnormity alarm module 8 and the printer module 7.
The network connection module 6 is connected to the network through a print server or a workstation; the network connection module 6 is directly connected to the network, and receives commands and print data transmitted from the print server or the workstation through the parallel port or the serial port.
In the WiFi positioning module 10, in the whole campus WiFi network, each fixed AP node periodically transmits WiFi signals to the periphery, and the WiFi signals are stored in the node name and position coordinates of the corresponding AP at the server; when other AP nodes in the area with known positions receive the signals of the AP nodes with the fixed positions, and the strength of the received signals is recorded; the positioning terminal sends the received signal strength to a background server, the server can calculate the relative path loss index of each path according to the received signal strength value and wireless equipment information stored in a database, then after the positioning terminal joins a campus network, the surrounding wifi signal strength, the SSID value and the average path loss index of the surrounding environment of each node are received, t test and median average filtering are carried out on the signal strength value, all the received signal strengths are sequenced, the node with high signal strength is selected as a primary positioning node, and finally the distance value is calculated according to a logarithmic distance loss model and the average path loss index; by the method, the distance value from the positioning terminal to the known WIFI can be obtained.
A charging module is arranged in the printer module 7, and the charging module is accessed into the Ethernet through a network expansion card or corresponding management software to communicate with the database server; the user firstly goes to the center of the all-purpose card to handle the card, register personal information and recharge, all the information is stored in the database, and then the user can swipe the card on the copier to print and copy; to ensure the safety and reliability of the whole system, the printing and copying process must include the following points: firstly, the opening of the copying machine must be controlled by the information of the user IC card, and the copying machine can only take and print if the user passing the authentication is a registered legal user and the balance in the card is higher than a certain limit; the printing and copying service carries out real-time deduction, namely, the card reader deducts the cost of one card from the IC card every time the copying machine copies one card; and thirdly, after the copying task is finished, operating the record flow back server to realize the synchronization of the IC card information and the database information.
The data output end of the maintenance terminal receiving module 13 is provided with a receiving computer, and the operation end of the computer is monitored by full-time maintenance personnel.
The data display device 9 automatically records the user name, when, where, what content is printed on which machine, the number of printed, copied pages, etc., and can play a deterrent role in printing illegal contents.
A monitoring function is arranged inside the safety information monitoring module 2; the functional module mainly meets the requirement of a user on safety, and has four branch functions of printing monitoring, environment monitoring, equipment monitoring and order management; the user can look over the printer current situation anytime and anywhere through operation campus sharing printer cell-phone end APP, can also look over the surveillance video of target user's use printer stage, manages safety protection system, detection ring border safety, can also monitor the abnormal operation of machine and make the warning and feed back.
An interface is reserved in the printer module 7 to realize resource sharing; the information and resource sharing is realized by integrating with other systems, and the requirements of an information campus are met; for example, the system can be interfaced with a library management system, a educational administration system, a school office automation management system, an identity authentication system and the like.
The power input end of the server module 5 is electrically connected with the power output end of the power supply module 4, and a standby charging power supply module is arranged inside the power supply module 4.
The WiFi positioning module 10 is arranged in the abnormity alarm module 8, the output end of the WiFi positioning module 10 is connected with the input end of a fault code recording module 11, the output end of the fault code recording module 11 is connected with the input end of a data sending module 12, the output end of the data sending module 12 is connected with the input end of a maintenance terminal receiving module 13, when the inside of the printer module 7 breaks down, the WiFi positioning module 10 is positioned through the WiFi inside, so that fault information is sent to the receiving end of the maintenance terminal receiving module 13 in time, maintenance personnel can receive the fault information in time and overhaul and maintain the printer, the waiting time of the equipment starting module 1 when the fault occurs is prolonged, more convenient printing service is provided for students, and the positioning information is more accurate by matching with the positioning technology of the WiFi positioning module 10, the maintenance system is beneficial to efficient checking with maintenance personnel, and the maintenance efficiency is improved; the opening of the internal printing and copying process of the printer module 7 is controlled by the information of the user IC card, the IC card information can be taken and printed only by registered legal users and the balance in the card is higher than a certain limit, meanwhile, the copying task is finished, the running back server of the operation record is operated, the synchronization of the IC card information and the database information is realized, so that students can check the printed data information in time when using the IC card information, the transparency of the printed data is improved, the use by people is facilitated, and the convenience of the system is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a campus printer service system based on thing networking, includes equipment start module (1), safety information monitoring module (2), thing networking transmission module (3), power module (4), server module (5), internet access module (6), printer module (7), unusual alarm module (8), data display equipment (9), wiFi orientation module (10), fault code record module (11), data transmission module (12), maintenance terminal receiving module (13), its characterized in that: the output of equipment start module (1) is connected with the input of safety information monitoring module (2), the output of safety information monitoring module (2) is connected with the input of thing networking transmission module (3), the output of thing networking transmission module (3) is connected with the input of server module (5), the output of server module (5) is connected with the input of internet access module (6), the output of internet access module (6) is connected with the input of printer module (7), the output of printer module (7) is connected with unusual alarm module (8) with the input of printer module (7).
2. The internet-of-things-based campus printer service system of claim 1, wherein: the power input end of the server module (5) is electrically connected with the power output end of the power supply module (4), and a standby charging power supply module is arranged inside the power supply module (4).
3. The internet-of-things-based campus printer service system of claim 1, wherein: the inside of exception alarm module (8) is provided with wiFi orientation module (10), the output of wiFi orientation module (10) is connected with the input of fault code record module (11), the output of fault code record module (11) is connected with the input of data transmission module (12), the output of data transmission module (12) is connected with the input of dimension guarantor terminal receiving module (13).
4. The internet-of-things-based campus printer service system of claim 1, wherein: the network connection module (6) is connected to a network through a print server or a workstation; the network connection module (6) is directly connected with the network and only receives commands and printing data transmitted by the printing server or the workstation through a parallel port or a serial port.
5. The internet-of-things-based campus printer service system of claim 1, wherein: an interface is reserved in the printer module (7) to realize resource sharing; the information and resource sharing is realized by integrating with other systems, and the requirements of an information campus are met; for example, the system can be interfaced with a library management system, a educational administration system, a school office automation management system and an identity authentication system.
6. The internet-of-things-based campus printer service system of claim 1, wherein: the data display device (9) automatically records the user name, when, where, what to print, the number of pages to print, copy.
7. The internet-of-things-based campus printer service system of claim 1, wherein: a monitoring function is arranged inside the safety information monitoring module (2); the functional module mainly meets the requirement of a user on safety, and has four branch functions of printing monitoring, environment monitoring, equipment monitoring and order management.
8. The internet-of-things-based campus printer service system of claim 1, wherein: the printer module (7) is internally provided with a charging module, and the charging module is accessed into the Ethernet through a network expansion card or corresponding management software to communicate with the database server.
9. The internet-of-things-based campus printer service system of claim 1, wherein: in the WiFi positioning module (10), each fixed AP node periodically transmits WIFI signals to the periphery in the whole campus WiFi network, and the names and position coordinates of the nodes corresponding to the APs are stored in a server; when other AP nodes in the area with known positions receive the signals of the AP nodes with the fixed positions, and the strength of the received signals is recorded; the positioning terminal sends received signal strength to a background server, the server calculates relative path loss indexes of all paths according to the received signal strength value and wireless device information stored in a database, then after the positioning terminal joins a campus network, the surrounding WIFI signal strength, SSID value and average path loss index of surrounding environment of each node are received, t test and median average filtering are carried out on the signal strength value, all received signal strengths are sequenced, the node with high signal strength is selected as a primary positioning node, and finally the distance value from the positioning terminal to the known WIFI is calculated according to a logarithmic distance loss model and the average path loss index.
10. The internet-of-things-based campus printer service system of claim 1, wherein: and a data output end of the maintenance terminal receiving module (13) is provided with a receiving computer, and an operation end of the computer is monitored by full-time maintenance personnel.
CN202111128445.4A 2021-09-26 2021-09-26 Campus printer service system based on Internet of things Pending CN113973158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111128445.4A CN113973158A (en) 2021-09-26 2021-09-26 Campus printer service system based on Internet of things

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111128445.4A CN113973158A (en) 2021-09-26 2021-09-26 Campus printer service system based on Internet of things

Publications (1)

Publication Number Publication Date
CN113973158A true CN113973158A (en) 2022-01-25

Family

ID=79587161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111128445.4A Pending CN113973158A (en) 2021-09-26 2021-09-26 Campus printer service system based on Internet of things

Country Status (1)

Country Link
CN (1) CN113973158A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105912284A (en) * 2016-05-09 2016-08-31 上海携程商务有限公司 Monitoring method and system of printer
CN107718910A (en) * 2017-10-27 2018-02-23 天津工业大学 The intelligence printer and system of printing function are shared with Unattended remote
CN107972371A (en) * 2017-09-29 2018-05-01 竹蜻蜓博轩(天津)科技有限公司 A kind of Intelligent printing device and application based on Internet of Things
CN208027489U (en) * 2018-03-22 2018-10-30 南通诚友信息技术有限公司 A kind of print system based on Internet of Things
CN108848128A (en) * 2018-05-19 2018-11-20 济南浪潮高新科技投资发展有限公司 A kind of system remotely controlling intelligent 3D printer equipment by platform of internet of things
CN109102654A (en) * 2018-08-03 2018-12-28 西北工业大学 A kind of network billing print system based on Campus Net
CN109189352A (en) * 2018-09-11 2019-01-11 宜春小马快印科技有限公司 Printer fault monitoring method, device, system and readable storage medium storing program for executing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105912284A (en) * 2016-05-09 2016-08-31 上海携程商务有限公司 Monitoring method and system of printer
CN107972371A (en) * 2017-09-29 2018-05-01 竹蜻蜓博轩(天津)科技有限公司 A kind of Intelligent printing device and application based on Internet of Things
CN107718910A (en) * 2017-10-27 2018-02-23 天津工业大学 The intelligence printer and system of printing function are shared with Unattended remote
CN208027489U (en) * 2018-03-22 2018-10-30 南通诚友信息技术有限公司 A kind of print system based on Internet of Things
CN108848128A (en) * 2018-05-19 2018-11-20 济南浪潮高新科技投资发展有限公司 A kind of system remotely controlling intelligent 3D printer equipment by platform of internet of things
CN109102654A (en) * 2018-08-03 2018-12-28 西北工业大学 A kind of network billing print system based on Campus Net
CN109189352A (en) * 2018-09-11 2019-01-11 宜春小马快印科技有限公司 Printer fault monitoring method, device, system and readable storage medium storing program for executing

Similar Documents

Publication Publication Date Title
JP4617621B2 (en) Print control apparatus and charging method thereof
CN101515224B (en) Printing system, printing method and printer
US7962155B2 (en) Location awareness of devices
CN103200222B (en) A kind of automobile intelligent monitoring system based on mobile communication wireless network
CN107103443A (en) Goods and materials intelligent management, apparatus and system based on Quick Response Code
US20030174356A1 (en) Tracking printing in a network
CN100458769C (en) Post checking device by fingerprint
CN108764828A (en) A kind of urban library management system
CN103294975A (en) Method and system for managing intelligent patrolling and personnel positioning
CN204303064U (en) A kind of self-help visitor system
CN107705472B (en) Time-space positioning module for billing, cloud billing system and method
CN102402658A (en) Classified printing control method based on virtual printing, intelligent card and information system
CN107240057A (en) Video monitoring residence management system and management method based on Quick Response Code
CN107507118A (en) A kind of three-dimensional safety of person vehicle prevention and control system
CN108282355A (en) Equipment patrolling device in cloud desktop system
CN208384637U (en) It is a kind of that nobody sells and takes ticket checking terminal
CN204155309U (en) Building ground management system
CN105373837A (en) Detection system for low-voltage equipment
CN202736110U (en) Stamp management system
CN113973158A (en) Campus printer service system based on Internet of things
CN201984523U (en) Information security management system (ISMS) for personnel and carrier
JP2000309147A (en) Charging system for printer, and printer
CN107531076B (en) For the global flag printing of safety document
CN108540540A (en) A kind of Intelligent internet of things positioning of passenger plane dining car and management system for monitoring and method
CN107808238A (en) A kind of management method and system for equipping assets

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination