CN102710977A - Device and method based on GPRS for avoiding set top box piracy - Google Patents

Device and method based on GPRS for avoiding set top box piracy Download PDF

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CN102710977A
CN102710977A CN 201210161729 CN201210161729A CN102710977A CN 102710977 A CN102710977 A CN 102710977A CN 201210161729 CN201210161729 CN 201210161729 CN 201210161729 A CN201210161729 A CN 201210161729A CN 102710977 A CN102710977 A CN 102710977A
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gprs
mcu
information
module
top box
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CN 201210161729
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Chinese (zh)
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易启鹏
曾泽君
许胜武
黄巍
龚克宇
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成都东银信息技术股份有限公司
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Abstract

The invention adds a General Packet Radio Service (GPRS) module in a traditional set top box and uses the GPRS module to perform steps comprising preset signature, verifying location information and micro-programmed control unit (MCU) and the like. According to the device and the method, the secret piracy of legal buyers can be avoided in the first place, and the location information of piracy can be provided for operators through the GPRS module, thereby facilitating the operators to protect the rights, and the piracy can be avoided more effectively.

Description

一种基于GPRS的机顶盒防盗版装置和方法 A set top box antipiracy apparatus and method based on GPRS

技术领域 FIELD

[0001] 本发明属于数字电视机顶盒应用领域,尤其涉及一种利用GPRS定位系统来防止不法分子利用机顶盒进行盗版的装置和方法。 [0001] The present invention belongs to the field of digital television set-top box applications, particularly to a positioning system using a GPRS method and apparatus to prevent illegal use of the set top box piracy.

背景技术 Background technique

[0002] 随着卫星数字电视的快速普及,有线数字电视、卫星数字电视及地面数字电视成为了最主要的数字电视传输技术。 [0002] With the rapid proliferation of digital satellite television, digital cable TV, digital satellite TV and digital terrestrial television has become the main digital television transmission technology. 卫星数字电视以其覆盖面广、建设维护成本低、接收方便等特性而被广泛应用。 Satellite digital TV with its wide coverage, low cost construction and maintenance, and other characteristics to facilitate reception is widely used. 人们在享受卫星数字电视带来的清晰与便利的同时,由于数字信号的易调制性能,卫星数字电视相比传统电视更容易被不法份子窃取从而产生盗版,因此卫星数字节目的安全传输也越来越受到重视。 People enjoy satellite digital TV brings clarity and convenience, due to the easy-modulation performance digital signal, digital satellite TV compared to conventional TVs more likely to be criminals to steal to produce pirated, so secure transmission of digital satellite programs are also increasingly the more attention. [0003] 卫星电视运营商虽然采取了各种各样的招法,但是收效甚微。 [0003] Although satellite TV operators have used a variety of tactics, but with little success. 现行的网络运营商往往通过CA (Conditional Access,条件接入)系统,即通过特定的CA卡来允许客户接受特定的电视网络运营商的数字信号,来控制节目内容,防止盗版。 Existing network operators, often through CA (Conditional Access, conditional access) system, which allows customers to specific CA card accepted a particular television network operator's digital signals to control program content, to prevent piracy. 其他常见的防止盗版方法还有对硬件flash芯片采用BGA封装、机顶盒主芯片采用高级安全技术、CffE控制字加密、软件加密算法升级等等方法。 Other common methods to prevent piracy as well as the use of hardware flash chip BGA package, the main set-top box chip uses advanced security technology, CffE control word encryption, encryption software upgrade method and so on. 这些方法在一定程度上遏制了盗版现象,但是仍然不能阻止合法所有者的秘密盗版行为。 These methods are to a certain extent, curb piracy, but still can not stop piracy secret legal owner. 现在经常出现合法的卫星电视网络运营商购买机顶盒之后,将机顶盒转移到其他地方秘密进行盗版行为,最后被发现该机顶盒有盗版内容流出后,该运营商谎称该机顶盒早已被盗而逃脱责任的情况;同时如果发生了盗版行为,现有方法也无法帮助权利人或警方追查该机顶盒的大致位置。 Now often appear legitimate satellite TV network operators after the purchase of set-top boxes, set-top boxes will be transferred to other places in secret piracy, the set-top box has finally been found out of the pirated content, the operator of the set-top boxes falsely claimed had stolen to escape responsibility situation; and if the piracy occurs, the existing methods can not help police track down the right people or the general location of the set-top box.

发明内容 SUMMARY

[0004] 针对上述问题,本发明的第一个目的在于提供一种基于GPRS的机顶盒防盗版装置,能够有效防止盗版行为发生的同时,还能提供一定信息以便当事人追究不法分子责任。 [0004] For the above problems, a first object of the present invention is to provide a set-top box-based anti-piracy device of GPRS, piracy can be effectively prevented from occurring simultaneously, but also provide some information to be held criminals responsibility of the parties.

[0005] 本发明的第二个目的在于提供一种利用GPRS系统进行机顶盒的防盗版的方法。 [0005] A second object of the present invention is to provide a method of using a set-top box GPRS system antipiracy.

[0006] 本发明的第一个目的通过以下的技术方案来完成:一种基于GPRS的机顶盒防盗版装置,包括CA模块和MCU,还包括GPRS模块,该GPRS模块用于将自身MEI号和来自于当前基站的位置信息发送到MCU,由MCU进行校验判断。 [0006] A first object of the present invention is accomplished by the following technical solutions: A set-top box based on GPRS piracy prevention means comprises CA module and MCU, further comprising a GPRS module, a GPRS module for the number itself and from MEI the base station transmits the current position information to the MCU, it is verified by a determination MCU.

[0007] 进一步的,所述GPRS模块还用于若MCU校验失败则GPRS模块通过无线网络向运营商进行告警。 [0007] Further, the GPRS module is further configured to, if the verification fails the MCU module GPRS alarm to the operator through the wireless network. 通过GPRS模块来对运营商进行告警,有利于运营商在第一时间维护自己的权利,减小盗版的损害程度。 To be alert to the operator through the GPRS module, in favor of operators in the first time to defend their rights, to reduce the extent of the damage piracy.

[0008] 进一步的,还包括GPS模块,GPS模块将地球坐标信息发送给GPRS模块作为位置信息。 [0008] Further, further comprising a GPS module, the GPS module transmits the coordinate information to the earth as the position information of the GPRS module. GPS的全球定位更加精确,更有利于查找到具体的盗版行为发生地。 GPS global positioning more accurate, more conducive to find specific piracy occurs.

[0009] 本发明的第二个目的通过以下的方案来完成:一种基于GPRS的机顶盒防盗版方法,其特征在于,包含步骤: [0009] A second object of the present invention is accomplished by the following scheme: based on GPRS STB antipiracy method comprising the steps of:

SI :预置签名与位置信息,在机顶盒首次安装的时候,将GPRS模块的MEI号和来自于当前基站的位置信息保存到MCU中;MCU对IMEI号进行签名得到签名信息,MCU将该签名信息发送到GPRS模块保存; SI: preset position information with a signature, the first set-top box at the time of installation, MEI number GPRS module will be saved and the current position information from the base station to the MCU; MCU IMEI number of signing to obtain signature information, the signature information MCU sent to the GPRS module stores;

S2 =MCU校验,首次安装之后机顶盒每次开机时,MCU向GPRS模块发出校验请求,GPRS模块收到请求后将当前的位置信息和已有的签名信息作为校验信息发送到MCU进行校验,如果MCU未收到校验信息,或校验信息中的签名信息有误,或校验信息中的位置信息有误,则MCU校验失败,MCU控制机顶盒停止工作。 S2 = MCU verify, after the first set top box each boot, MCU verification request sent to the GPRS module, a GPRS module after receiving the request and the current position information has been transmitted to the MCU signature information as verification information for correction inspection, if the MCU does not receive signature information verification information, or check the information is incorrect, or location information verification information is incorrect, then check fails MCU, MCU control set-top box to stop working.

[0010] 进一步的,还包括步骤S3 :若MCU校验失败,则MCU向GPRS模块发出告警信息,GPRS模块通过无线网络向运营商管理中心告警并上传位置信息,运营商停止对该机顶盒的CA授权。 [0010] Further, further comprising the step S3: If the check fails MCU, the MCU send alarm information, the wireless network through the GPRS module and uploaded to the management center operator position information to the GPRS module alarm, the operator stops the STB CA authorization. 通过GPRS模块来对运营商进行告警,有利于运营商在第一时间维护自己的权利,减小盗版的损害程度。 To be alert to the operator through the GPRS module, in favor of operators in the first time to defend their rights, to reduce the extent of the damage piracy.

[0011] 进一步的,所述步骤SI中还包括:MCU还将MCU自身的芯片号发送到GPRS模块进行保存;所述步骤S3中还包括:GPRS模块向运营商管理中心上传位置信息的同时还上传芯片号。 [0011] Further, the step SI further comprising: sending to the MCU GPRS module will also save its own MCU chip number; S3, further comprising the step of: GPRS module information to the management center operator position also upload Upload chip number. 在告警的内容中增加MCU芯片号,有利于快速确定机顶盒的原购买者,便于运营商维护自身权利。 MCU chip number increase in the content of the alarm, the set-top box conducive to quickly identify the original purchaser, for operators to defend their rights.

[0012] 进一步的,所述步骤S2中,MCU将随机数D作为校验请求发送到GPRS模块,GPRS模块通过与签名信息相同的签名算法进行签名后,将签名后的随机数D也作为校验信息的一部分发送回MCU。 After the S2, the MCU transmits the random number D [0012] Further, the step as a verification request to the GPRS module, GPRS module is signed by the signature information as the signature algorithm, the signature of the random number will be used as the correction D posterior part of the information sent back to the MCU. 在校验中增加对随机数D的签名过程,通过对签名算法的校验能够确保GPRS模块不被替换。 Signature process to increase the random number D in the verification by the signature verification algorithm to ensure the GPRS module is not replaced.

[0013] 进一步的,由GPS模块提供地球坐标信息作为位置信息,代替所述步骤SI中的当前基站的位置信息,并在所述步骤S2中由当前的地球坐标信息作为当前的位置信息。 [0013] Further, there is provided by the terrestrial coordinate information as the position information of the GPS module, instead of the current position information of the base station in step SI, and to the earth by the current coordinate information as current position information in the step S2. GPS的全球定位更加精确,更有利于查找到具体的盗版行为发生地。 GPS global positioning more accurate, more conducive to find specific piracy occurs. [0014] 本发明的有益效果在于:本发明在传统机顶盒中增加了GPRS模块,并利用该GPRS模块进行预置签名与位置信息、MCU校验等步骤,能够在第一时间防止合法购买者的秘密盗版行为,并能通过GPRS模块向运营商提高盗版行为发生地的位置信息,有利于运营商保护自身权利,更切实有效的防止盗版行为。 [0014] Advantageous effects of the present invention: The present invention increases the GPRS module in the conventional set-top box, and using the GPRS module signature preset position information, the MCU and the like check step, can be prevented legitimate purchaser at a first time secret piracy, and improve location information by GPRS module piracy occurred to operators, help operators protect their rights, more effective to prevent piracy.

附图说明 BRIEF DESCRIPTION

[0015] 图I为本发明具体实施例的防盗版装置的电路模块示意图; [0015] Figure I is a schematic diagram of a circuit module means antipiracy particular embodiment of the invention;

图2为本发明具体实施例的增加了GPS模块后防盗版装置的电路模块示意图; DETAILED FIG 2 illustrates a diagram showing an increase of a circuit module GPS module piracy defense device according to the present invention;

图3为本发明具体实施例的防盗版方法的步骤示意图; Step 3 antipiracy diagram showing a specific example of the method of the embodiment of the present invention;

图4为本发明具体实施例的防盗版方法的校验判断流程示意图。 FIG. 4 the verify judgment process antipiracy diagram showing a specific example of the method of the embodiment of the present invention.

具体实施方式 detailed description

[0016] 本说明书中公开的所有特征,或公开的所有方法或过程中的步骤,除了互相排斥的特征和/或步骤以外,均可以以任何方式组合。 All of the features [0016] disclosed in the present specification, or all of the steps of a method or process disclosed, except the mutually exclusive features and / or steps, can be combined in any manner.

[0017] 本说明书中公开的任一特征,除非特别叙述,均可被其他等效或具有类似目的的替代特征加以替换。 [0017] disclosed in the present specification any one feature unless specifically recited, may be replaced by other equivalent or alternative features having similar purpose. 即,除非特别叙述,每个特征只是一系列等效或类似特征中的一个例子而已。 That is, unless specifically described, each feature is only one example of a series of equivalent or similar features only. 同时本说明书中对替代特征的描述是对等同技术特征的描述,不得视为对公众的捐献。 While the description of the present specification is a description of alternative features equivalent technical features shall not be considered contributions to the public.

[0018] 本说明书中用语若同时具有一般含义与本领域特有含义的,如无特殊说明,均定义为本领域特有含义。 [0018] If the same term in the present specification have the general meaning specific meaning in the art, without special note are specific meanings defined art.

[0019] 如图I所示,为本发明具体实施例的防盗版装置的电路模块示意图。 [0019] FIG I, a schematic diagram of a circuit module antipiracy particular embodiment of the apparatus according to the invention. 本防盗版装置由CA模块、MCU和GPRS模块组成,CA模块根据运营商的授权来接收运营商提供的数字电视内容,MCU将该数字电视内容转换为可直接播放的音视频流并同时对机顶盒内部的各器件进行管理,GPRS模块将自身的MEI号和当前基站的位置信息发送给MCU进行防盗版的校验,如果校验失败则MCU控制机顶盒停止工作,同时GPRS模块向运营商发送告警信息,运营商停止该机顶盒的CA授权。 This anti-piracy device by the CA module, MCU and GPRS modules, CA module to receive the digital television content provided by the operator according to the operator's authorization, MCU converts the digital television content to be played directly and simultaneously to the audio and video stream STB inside each device management, GPRS module position information and its current base station number MEI be transmitted to the MCU piracy check, if the check fails, the MCU controls the set top box is stopped, while the GPRS module sends an alarm message to the operator operators stop the set-top box CA authorization. MCU和GPRS模块中还有将并口转换为RS-232的串口的通信串口,用于协调MCU和GPRS模块之间的通信。 MCU and GPRS module also converts the parallel communication of RS-232 serial port for communication between the MCU and coordination GPRS module.

[0020] 根据本发明的另一个实施例,如图2所示,在上述模块的基础上还增加了GPS模块,该GPS模块将当前的地球坐标信息发送给GPRS模块,用于替代相对不那么精准的基站的位置信息。 [0020] According to another embodiment of the present invention, as shown, on the basis of the above module 2 also adds a GPS module, the GPS module sends the coordinate information to the earth current GPRS module configured to substitute relatively less precise position information of the base station.

[0021] 如图3所示,为本发明的基于GPRS的机顶盒防盗版方法的步骤示意图,由以下步骤组成: [0021] FIG. 3, the step of the present invention a method for GPRS-based set-top box antipiracy schematic, comprising the steps of:

51 :预置签名与位置信息,在机顶盒首次安装的时候,将GPRS模块的MEI号和来自于当前基站的位置信息保存到MCU中;MCU对IMEI号进行签名得到签名信息,MCU将该签名信息和自身的芯片号发送到GPRS模块保存; 51: signature preset position information, the first set-top box at the time of installation, MEI number GPRS module will be saved and the current position information from the base station to the MCU; MCU to obtain the IMEI signing the signature information, the signature information MCU and its chip number to the GPRS module stores;

52 =MCU校验,首次安装之后机顶盒每次开机时,MCU将随机数D作为校验请求发送到GPRS模块;GPRS模块收到请求后,通过与签名信息相同的签名算法对随机数D进行签名,而后将当前的位置信息和签名后的随机数D以及已有的签名信息作为校验信息发送到MCU进行校验;如果MCU未收到校验信息,或校验信息中的签名信息有误,或校验信息中的位置信息有误,则MCU校验失败,MCU控制机顶盒停止工作。 52 = MCU verify, after the first set top box each boot, the MCU transmits the random number D module as verification request to the GPRS; GPRS module after receiving the request, sign the random number D by the signature information as the signature algorithm , to the MCU transmits the random number D will be verified after the current location information and the signature information as the signature and existing parity information; If the MCU does not receive signature information verification information, verification information, or incorrect , or location information in the error check information, the check fails MCU, MCU control set-top box to stop working.

[0022] S3 :若MCU校验失败,则MCU向GPRS模块发出告警信息,GPRS模块通过无线网络向运营商管理中心告警并上传位置信息和芯片号,运营商停止对该机顶盒的CA授权。 [0022] S3: If the check fails MCU, the MCU GPRS module to send alarm information, the wireless network through the GPRS module to alert operators and upload location information management center and a chip number, CA authorize the operator to stop the set-top box.

[0023] 根据另一个实施例,由GPS模块提供地球坐标信息作为位置信息,代替所述步骤SI中的当前基站的位置信息,并在所述步骤S2、S3中由当前的地球坐标信息作为当前的位 [0023] According to another embodiment, the GPS module provided by the terrestrial coordinate information as the location information, instead of the current position information of the base station in step SI, and the steps S2, S3 as the earth by the current coordinate information of the current bit

置信息。 Configuration information.

[0024] 如图4所示,为MCU校验时的校验判断流程图。 As shown in [0024] FIG 4, when the MCU is determined parity check flow chart. MCU在发出校验请求之后,首先看接收校验信息是否超时,如果超时则有可能GPRS模块被移除或替换了,则MCU直接判定校验失败;如果正常接收到了校验信息则判断签名信息是否有变化,这里的变化是指两个,一个是存在GPRS模块中的签名后的IMEI号有没有变化,这是对历史内容的检验,另一个是看当前的随机数D的签名算法是否相同,因为如果不法分子只是保存了过去的签名后的IMEI号而没有使用当前的算法,则解密出的随机数D也会不同,如果签名信息有变化,则校验失败;如果签名信息也没有变化,最后则校验位置信息是否相同,这里的位置信息,默认情况下是指当前基站的基站号和小区号,若加装了GPS模块则为地球坐标信息,若位置信息有变化则校验失败,若位置信息也没有变化,则认为机顶盒状态正常,让机顶盒正常工作。 After verification request issued MCU, first to see if the received verification information expires, if the timeout is likely GPRS module is removed or replaced, the MCU determines that the verification fails directly; normally received if the signature information verification information is determined whether there is a change, the change here is the two, one is the presence of GPRS module IMEI number after the signature has not changed, it is a test of historical content, and the other is to look at the current signature algorithm is the same as the random number D because if criminals just save the IMEI number after the last signature without using the current algorithm, the decrypted random number D will be different, if the signature information changes, the check fails; if there is no change in the signature information Finally, check whether the location information is the same, where the position information, by default refers to a base station number and the number of the current cell base station, if the GPS module was installed terrestrial coordinate information, if there is a change of the position information of the verification fails If the location information has not changed, the state is considered normal set-top boxes, set-top boxes to make work properly. 上述过程中,一旦校验失败,MCU停止机顶盒的工作,同时利用GPRS模块通过无线网络向运营商管理中心告警,运营商接收到告警之后则停止对该机顶盒的CA授权。 After the above process, once the verification fails, the MCU stopped set-top box, while the use of an alarm to the operator GPRS module management center through a wireless network, the operator receives an alarm stop CA authorize the set top box. ,

Claims (8)

  1. 1. 一种基于GPRS的机顶盒防盗版装置,包括CA模块和MCU,其特征在于: 还包括GPRS模块,该GPRS模块用于将自身MEI号和来自于当前基站的位置信息发送到MCU,由MCU进行校验判断。 A set-top box based on GPRS antipiracy apparatus comprising a MCU and a CA module, characterized by: further comprising a GPRS module, a GPRS module for transmitting the own position information from MEI number and the current base station to the MCU, the MCU verify determination.
  2. 2.根据权利要求I所述基于GPRS的机顶盒防盗版装置,其特征在于: 所述GPRS模块还用于若MCU校验失败则GPRS模块通过无线网络向运营商进行告警。 According to claim I of the GPRS-based anti-piracy device of the set top box, wherein: said GPRS module is further configured to, if the verification fails the MCU module GPRS alarm to the operator through the wireless network.
  3. 3.根据权利要求I所述基于GPRS的机顶盒防盗版装置,其特征在于: 还包括GPS模块,GPS模块将地球坐标信息发送给GPRS模块作为位置信息。 3. I GPRS-based version of the set top box device according to claim theft, characterized by: further comprising a GPS module, the GPS module transmits the coordinate information to the earth as the position information of the GPRS module.
  4. 4. 一种基于GPRS的机顶盒防盗版方法,其特征在于,包含步骤: 51 :预置签名与位置信息,在机顶盒首次安装的时候,将GPRS模块的MEI号和来自于当前基站的位置信息保存到MCU中;MCU对IMEI号进行签名得到签名信息,MCU将该签名信息发送到GPRS模块保存; 52 =MCU校验,首次安装之后机顶盒每次开机时,MCU向GPRS模块发出校验请求,GPRS模块收到请求后将当前的位置信息和已有的签名信息作为校验信息发送到MCU进行校验,如果MCU未收到校验信息,或校验信息中的签名信息有误,或校验信息中的位置信息有误,则MCU校验失败,MCU控制机顶盒停止工作。 A GPRS based STB antipiracy, characterized in that it comprises the step of: 51: signature preset position information, the set top box at the time of the first installation, the number MEI GPRS module and save the current position information from a base station into the MCU; MCU IMEI number of signatures obtained for signature information, the signature information transmitted to the GPRS MCU module stores; 52 = MCU verify, after the first set top box each boot, MCU verification request sent to the GPRS module, GPRS module after receiving the request the current position information and the existing signature information transmitted to the MCU as verification information for verification, if the MCU does not receive signature information verification information, verification information, or error, check, or position information is incorrect, then the check fails MCU, MCU control set-top box to stop working.
  5. 5.根据权利要求4所述基于GPRS的机顶盒防盗版方法,其特征在于: 还包括步骤S3 :若MCU校验失败,则MCU向GPRS模块发出告警信息,GPRS模块通过无线网络向运营商管理中心告警并上传位置信息,运营商停止对该机顶盒的CA授权。 According to claim GPRS set top box. 4 based on piracy prevention method, characterized by: further comprising the step S3: If MCU check fails, an alarm message to the MCU GPRS module, GPRS module through a wireless network operator to the management center alarms and upload location information, the operator stops CA authorize the set-top box.
  6. 6.根据权利要求5所述基于GPRS的机顶盒防盗版方法,其特征在于: 所述步骤SI中还包括:MCU还将MCU自身的芯片号发送到GPRS模块进行保存; 所述步骤S3中还包括:GPRS模块向运营商管理中心上传位置信息的同时还上传芯片号。 According to claim 5, wherein the set-top box GPRS based antipiracy, wherein: said step SI further comprising: sending to the MCU GPRS module will also save its own MCU chip number; further comprising the step S3 : GPRS module upload location information to the operator's management center also upload chip number.
  7. 7.根据权利要求4所述基于GPRS的机顶盒防盗版方法,其特征在于: 所述步骤S2中,MCU将随机数D作为校验请求发送到GPRS模块,GPRS模块通过与签名信息相同的签名算法进行签名后,将签名后的随机数D也作为校验信息的一部分发送回MCU。 According to claim 4 GPRS-based set-top box antipiracy, wherein: S2 in, the MCU will transmit the random number in step D as a verification request to the GPRS module, GPRS module by the same signature information Signature Algorithm after the signature, the signature of the random number D as part of the verification information is sent back to MCU.
  8. 8.根据权利要求4所述基于GPRS的机顶盒防盗版方法,其特征在于: 由GPS模块提供地球坐标信息作为位置信息,代替所述步骤SI中的当前基站的位置信息,并在所述步骤S2中由当前的地球坐标信息作为当前的位置信息。 4 GPRS according to the set top box based on piracy prevention method, as claimed in claim wherein: Earth coordinates provided by a GPS module information as the location information, instead of the position information of the current base station in step SI, and in the step S2 in the current terrestrial coordinate information as current position information.
CN 201210161729 2012-05-23 2012-05-23 Device and method based on GPRS for avoiding set top box piracy CN102710977A (en)

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