CN110324881B - Internet of Things-based security protection information transmission method, security protection system and computer readable medium - Google Patents
Internet of Things-based security protection information transmission method, security protection system and computer readable medium Download PDFInfo
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- CN110324881B CN110324881B CN201910604108.4A CN201910604108A CN110324881B CN 110324881 B CN110324881 B CN 110324881B CN 201910604108 A CN201910604108 A CN 201910604108A CN 110324881 B CN110324881 B CN 110324881B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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Abstract
本发明公开了一种基于物联网的安全防护信息传输方法，包括如下步骤：由移动终端收集安全防护信息；由移动终端向传输接收点发送接入请求；由移动终端接收接入响应消息；响应于接收到接入响应消息，由移动终端向传输接收点发送通信信道排他使用状态请求消息；由移动终端接收通信信道排他使用状态响应消息；由移动终端基于通信信道排他使用状态响应消息判断移动终端是否获得对于通信信道的独占使用；以及如果判断移动终端没有获得对于通信信道的独占使用，则在等待时间之后，再次由移动终端向传输接收点发送通信信道排他使用状态请求消息。本发明可以将信息传输至中心服务器，中心服务器具有强大的计算功能，更有利于中心服务器进行安防情况的判断。
The invention discloses a security protection information transmission method based on the Internet of Things, comprising the following steps: collecting security protection information by a mobile terminal; sending an access request by the mobile terminal to a transmission and receiving point; receiving an access response message by the mobile terminal; After receiving the access response message, the mobile terminal sends a communication channel exclusive use status request message to the transmission receiving point; the mobile terminal receives the communication channel exclusive use status response message; the mobile terminal determines the mobile terminal based on the communication channel exclusive use status response message. Whether to obtain the exclusive use of the communication channel; and if it is determined that the mobile terminal does not obtain the exclusive use of the communication channel, after the waiting time, the mobile terminal sends the communication channel exclusive use status request message to the transmission receiving point again. The present invention can transmit information to the central server, and the central server has a powerful computing function, which is more conducive to the central server to judge the security situation.
Description
Technical Field
The present invention relates to the field of computer internet of things technology, and in particular, to a method for transmitting security protection information based on the internet of things, a security protection system, and a computer readable medium.
Background
Safety protection, namely security protection, namely safety, namely no danger, no invasion and no accident; protection refers to defense, arming, which refers to preparing to cope with an attack or avoid a victim, and arming, which refers to defense and protection. In summary of the above explanations, whether or not the following definitions can be given for safety protection: the method is ready and protected to cope with attacks or avoid victims, so that the protected object is in a safe state without danger, invasion and accidents.
Prior art CN107154159B a information security protection system for car, including setting up an at least first camera, an at least second camera, infrared distance measuring sensor, setting motion state detection module, treater, the transparent display and the remote server of embedding in the windscreen in front on the car, infrared distance measuring sensor with first camera is located same horizontal plane, motion state detection module with first camera is connected, the treater respectively with first camera, second camera and infrared distance measuring sensor connect, the remote server with the treater keeps the wireless length to be connected, be provided with the high in the clouds database in the remote server.
The prior art CN105553924B discloses a safety protection method applied to smart home, which further includes: the smart home receives a home management communication request sent by a smart home client; the intelligent home judges whether the client is registered in the intelligent home; if so, sending a security communication authorization request to the smart home authorization terminal; the smart home receives a confirmation instruction sent by the authorization terminal in response to the secure communication authorization request, wherein the confirmation instruction is used for confirming the secure communication of the client; and the intelligent home sends response information allowing communication to the client.
Prior art CN105678120B discloses an application program security protection method and a server, wherein the method includes: the server receives a first application program sent by a client; the server modifies the parameters and/or instructions of the first application program to obtain a second application program, the second application program can run normally, and when a reverse tool is used for analyzing the second application program, the second application program can cause the reverse tool to report errors and quit; and the server sends the second application program to the client.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a security protection information transmission method, a security protection system and a computer readable medium based on the Internet of things, which can overcome the defects of the prior art.
In order to achieve the above object, the present invention provides a method for transmitting security protection information based on the internet of things, which comprises the following steps:
collecting safety protection information by a mobile terminal;
the mobile terminal sends an access request to a transmission receiving point;
receiving, by the mobile terminal, an access response message, wherein the access response message is transmitted by the transmission receiving point in response to receiving the access request;
transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message;
receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a waiting time;
determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and
if it is judged that the mobile terminal does not obtain exclusive use of the communication channel, the communication channel exclusive use status request message is transmitted again by the mobile terminal to the transmission reception point after the waiting time.
In a preferred embodiment, the method for transmitting the security protection information based on the internet of things further includes the following steps: if the mobile terminal obtains the exclusive use of the communication channel, the mobile terminal sends safety protection information to the transmission receiving point; and responding to the received safety protection information, and forwarding the safety protection information to a safety protection center by the transmission receiving point.
In a preferred embodiment, wherein the communication channel exclusive use status request message includes a mobile terminal ID of the mobile terminal, and wherein different mobile terminals have different mobile terminal IDs; wherein the communication channel exclusive use status response message is broadcast by the transmission reception point in response to successful reception of the communication channel exclusive use status request message, wherein the communication channel exclusive use status response message includes the mobile terminal ID of one of the received mobile terminal IDs of the plurality of mobile terminals; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message includes the steps of: decoding, by the mobile terminal, the received communication channel exclusive use status response message to obtain a mobile terminal ID; and if the obtained mobile terminal ID coincides with the mobile terminal ID of the mobile terminal itself, judging that the mobile terminal has obtained exclusive use of the communication channel.
In a preferred embodiment, the waiting time included in the communication channel exclusive use status response message is generated by: establishing a random number set and establishing a corresponding relation between the random numbers in the random number set and the waiting time; randomly selecting a random number from a random number set by a transmission receiving point after receiving a communication channel exclusive use status request message; deleting the selected random number from the set of random numbers; and converting the selected random number into the waiting time based on the correspondence between the random number and the waiting time.
In a preferred embodiment, if the set of random numbers becomes an empty set after the selected random numbers are deleted, a new set of random numbers is generated again.
The invention also provides an intelligent safety protection system, which comprises:
means for collecting security information by a mobile terminal;
means for sending an access request by the mobile terminal to the transmission receiving point;
means for receiving, by the mobile terminal, an access response message, wherein the access response message is sent by the transmission receiving point in response to receiving the access request;
means for transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message;
means for receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a wait time;
means for determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and
means for transmitting, by the mobile terminal, the communication channel exclusive use status request message to the transmission reception point again after the waiting time if it is judged that the mobile terminal does not obtain exclusive use of the communication channel.
In a preferred embodiment, the intelligent security protection system comprises: means for sending, by the mobile terminal, security guard information to the transmission receiving point if it is determined that the mobile terminal obtains exclusive use of the communication channel; and means for forwarding, by the transmitting recipient point, the security information to the security center in response to receiving the security information.
In a preferred embodiment, wherein the communication channel exclusive use status request message includes a mobile terminal ID of the mobile terminal, and wherein different mobile terminals have different mobile terminal IDs; wherein the communication channel exclusive use status response message is broadcast by the transmission reception point in response to successful reception of the communication channel exclusive use status request message, wherein the communication channel exclusive use status response message includes the mobile terminal ID of one of the received mobile terminal IDs of the plurality of mobile terminals; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message includes the steps of: decoding, by the mobile terminal, the received communication channel exclusive use status response message to obtain a mobile terminal ID; and if the obtained mobile terminal ID coincides with the mobile terminal ID of the mobile terminal itself, judging that the mobile terminal has obtained exclusive use of the communication channel.
In a preferred embodiment, the waiting time included in the communication channel exclusive use status response message is generated by: establishing a random number set and establishing a corresponding relation between the random numbers in the random number set and the waiting time; randomly selecting a random number from a random number set by a transmission receiving point after receiving a communication channel exclusive use status request message; deleting the selected random number from the set of random numbers; converting the selected random number into waiting time based on the corresponding relation between the random number and the waiting time; wherein if the set of random numbers becomes an empty set after deleting the selected random numbers, a new set of random numbers is generated again.
The present invention also provides a computer-readable storage medium having stored therein code for:
collecting safety protection information by a mobile terminal;
the mobile terminal sends an access request to a transmission receiving point;
receiving, by the mobile terminal, an access response message, wherein the access response message is transmitted by the transmission receiving point in response to receiving the access request;
transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message;
receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a waiting time;
determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and
if it is judged that the mobile terminal does not obtain exclusive use of the communication channel, the communication channel exclusive use status request message is transmitted again by the mobile terminal to the transmission reception point after the waiting time.
Compared with the prior art, the invention has the following advantages: most of the traditional safety protection methods are completed based on video monitoring, but the following defects exist in the security protection through the video monitoring: first, video equipment is easily damaged, and in some places, damaged video equipment cannot be repaired or replaced for a long time due to financial reasons, which results in a large number of monitoring dead zones. In addition, video monitoring generally depends on security personnel to check in real time to ensure the security effect, and once the security personnel neglect to see, accidents can be caused. In addition, due to the limitation of cost, many video monitoring devices are not watched by security personnel in real time, so that many video monitoring devices only can play a role in making up and researching at any time afterwards, and the function of prevention is difficult to complete. The invention provides a safety protection information transmission method based on the Internet of things, aiming at the problems in the prior art, because the information can be transmitted to the central server, and the central server and the computer set have strong calculation functions, the invention can monitor the safety protection information without being limited to videos, and can also monitor the information such as temperature, humidity, sound decibel and the like, and transmit the information to the central server, thereby being more beneficial to the central server to judge the safety protection condition.
Drawings
Fig. 1 is a flowchart of a method for transmitting security protection information based on the internet of things according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a flowchart of a method for transmitting security protection information based on the internet of things according to an embodiment of the present invention. As shown in the figure, the method for transmitting the safety protection information based on the internet of things comprises the following steps:
step 101: the method comprises the steps that safety protection information is collected by a mobile terminal (the mobile terminal can be a mobile phone, a notebook computer, an Internet of things device or a low-cost low-complexity device, for example) (the method can be applied to various security protection fields, and the method can be used in occasions suitable for installing the mobile terminal, such as underground parking lots, shopping malls, office buildings and the like);
step 102: the mobile terminal sends an access request to a transmission receiving point;
step 103: receiving, by the mobile terminal, an access response message, wherein the access response message is transmitted by the transmission receiving point in response to receiving the access request;
step 104: transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message;
step 105: receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a waiting time;
step 106: determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and
step 107: if it is judged that the mobile terminal does not obtain exclusive use of the communication channel, the communication channel exclusive use status request message is transmitted again by the mobile terminal to the transmission reception point after the waiting time.
In a preferred embodiment, the method for transmitting the security protection information based on the internet of things further includes the following steps: if the mobile terminal obtains the exclusive use of the communication channel, the mobile terminal sends safety protection information to the transmission receiving point; and responding to the received safety protection information, and transmitting the safety protection information to a safety protection center by a transmission receiving point (the safety protection center can be a central computer or a central computer group operated by a safety protection provider, and can monitor various kinds of safety protection information at each place and give an early warning in time).
In a preferred embodiment, wherein the communication channel exclusive use status request message includes a mobile terminal ID of the mobile terminal, and wherein different mobile terminals have different mobile terminal IDs; wherein the communication channel exclusive use status response message is broadcast by the transmission reception point in response to successful reception of the communication channel exclusive use status request message, wherein the communication channel exclusive use status response message includes the mobile terminal ID of one of the received mobile terminal IDs of the plurality of mobile terminals; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message includes the steps of: decoding, by the mobile terminal, the received communication channel exclusive use status response message to obtain a mobile terminal ID; and if the obtained mobile terminal ID coincides with the mobile terminal ID of the mobile terminal itself, judging that the mobile terminal has obtained exclusive use of the communication channel.
In a preferred embodiment, the waiting time included in the communication channel exclusive use status response message is generated by: establishing a random number set and establishing a corresponding relation between the random numbers in the random number set and the waiting time; randomly selecting a random number from a random number set by a transmission receiving point after receiving a communication channel exclusive use status request message; deleting the selected random number from the set of random numbers; and converting the selected random number into the waiting time based on the correspondence between the random number and the waiting time.
In a preferred embodiment, if the set of random numbers becomes an empty set after the selected random numbers are deleted, a new set of random numbers is generated again.
The invention provides an intelligent safety protection system, which comprises: means for collecting security information by a mobile terminal; means for sending an access request by the mobile terminal to the transmission receiving point; means for receiving, by the mobile terminal, an access response message, wherein the access response message is sent by the transmission receiving point in response to receiving the access request; means for transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message; means for receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a wait time; means for determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and a unit for transmitting, by the mobile terminal, the communication channel exclusive use status request message to the transmission reception point again after the waiting time if it is judged that the mobile terminal does not obtain the exclusive use of the communication channel.
In a preferred embodiment, the intelligent security protection system comprises: means for sending, by the mobile terminal, security guard information to the transmission receiving point if it is determined that the mobile terminal obtains exclusive use of the communication channel; and means for forwarding, by the transmitting recipient point, the security information to the security center in response to receiving the security information.
In a preferred embodiment, wherein the communication channel exclusive use status request message includes a mobile terminal ID of the mobile terminal, and wherein different mobile terminals have different mobile terminal IDs; wherein the communication channel exclusive use status response message is broadcast by the transmission reception point in response to successful reception of the communication channel exclusive use status request message, wherein the communication channel exclusive use status response message includes the mobile terminal ID of one of the received mobile terminal IDs of the plurality of mobile terminals; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message includes the steps of: decoding, by the mobile terminal, the received communication channel exclusive use status response message to obtain a mobile terminal ID; and if the obtained mobile terminal ID coincides with the mobile terminal ID of the mobile terminal itself, judging that the mobile terminal has obtained exclusive use of the communication channel.
In a preferred embodiment, the waiting time included in the communication channel exclusive use status response message is generated by: establishing a random number set and establishing a corresponding relation between the random numbers in the random number set and the waiting time; randomly selecting a random number from a random number set by a transmission receiving point after receiving a communication channel exclusive use status request message; deleting the selected random number from the set of random numbers; converting the selected random number into waiting time based on the corresponding relation between the random number and the waiting time; wherein if the set of random numbers becomes an empty set after deleting the selected random numbers, a new set of random numbers is generated again.
The present invention also provides a computer-readable storage medium having stored therein code for: collecting safety protection information by a mobile terminal; the mobile terminal sends an access request to a transmission receiving point; receiving, by the mobile terminal, an access response message, wherein the access response message is transmitted by the transmission receiving point in response to receiving the access request; transmitting, by the mobile terminal, a communication channel exclusive use state request message to the transmission reception point in response to receiving the access response message; receiving, by the mobile terminal, a communication channel exclusive use status response message, wherein the communication channel exclusive use status response message is transmitted by the transmission reception point in response to receiving the communication channel exclusive use status request message, and wherein the communication channel exclusive use status response message includes a waiting time; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message; and transmitting, by the mobile terminal, the communication channel exclusive use state request message to the transmission reception point again after the waiting time if it is judged that the mobile terminal does not obtain the exclusive use of the communication channel.
In a preferred embodiment, a computer-readable storage medium has stored therein code for: if the mobile terminal obtains the exclusive use of the communication channel, the mobile terminal sends safety protection information to the transmission receiving point; and responding to the received safety protection information, and forwarding the safety protection information to a safety protection center by the transmission receiving point.
In a preferred embodiment, wherein the communication channel exclusive use status request message includes a mobile terminal ID of the mobile terminal, and wherein different mobile terminals have different mobile terminal IDs; wherein the communication channel exclusive use status response message is broadcast by the transmission reception point in response to successful reception of the communication channel exclusive use status request message, wherein the communication channel exclusive use status response message includes the mobile terminal ID of one of the received mobile terminal IDs of the plurality of mobile terminals; determining, by the mobile terminal, whether the mobile terminal obtains exclusive use of the communication channel based on the communication channel exclusive use status response message includes the steps of: decoding, by the mobile terminal, the received communication channel exclusive use status response message to obtain a mobile terminal ID; if the obtained mobile terminal ID is consistent with the mobile terminal ID of the mobile terminal itself, it is judged that the mobile terminal has obtained exclusive use of the communication channel.
In a preferred embodiment, the waiting time included in the communication channel exclusive use status response message is generated by: establishing a random number set and establishing a corresponding relation between the random numbers in the random number set and the waiting time; randomly selecting a random number from a random number set by a transmission receiving point after receiving a communication channel exclusive use status request message; deleting the selected random number from the set of random numbers; and converting the selected random number into the waiting time based on the correspondence between the random number and the waiting time.
In a preferred embodiment, if the set of random numbers becomes an empty set after the selected random numbers are deleted, a new set of random numbers is generated again.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
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| US5636223A (en) * | 1995-06-27 | 1997-06-03 | Motorola, Inc. | Methods of adaptive channel access attempts |
| CN106535301A (en) * | 2016-12-30 | 2017-03-22 | 珠海赛纳打印科技股份有限公司 | Method, device and system for establishing communication connection |
| CN107743154A (en) * | 2017-10-18 | 2018-02-27 | 上海兴容信息技术有限公司 | A kind of tracking and attendance checking system and its method based on Wi Fi intelligent terminals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8688517B2 (en) * | 2009-02-13 | 2014-04-01 | Cfph, Llc | Method and apparatus for advertising on a mobile gaming device |
| CN102158930B (en) * | 2010-02-11 | 2015-07-22 | 电信科学技术研究院 | Method and equipment for accessing MTC (Multimedia Telephone Communication) equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636223A (en) * | 1995-06-27 | 1997-06-03 | Motorola, Inc. | Methods of adaptive channel access attempts |
| CN106535301A (en) * | 2016-12-30 | 2017-03-22 | 珠海赛纳打印科技股份有限公司 | Method, device and system for establishing communication connection |
| CN107743154A (en) * | 2017-10-18 | 2018-02-27 | 上海兴容信息技术有限公司 | A kind of tracking and attendance checking system and its method based on Wi Fi intelligent terminals |
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