技术领域technical field
本发明涉及型号识别技术领域，特别涉及一种识别器件类别的电路、电路板、终端设备及信号控制器。The invention relates to the technical field of model identification, in particular to a circuit, a circuit board, terminal equipment and a signal controller for identifying device types.
背景技术Background technique
目前的软件通用平台化开发中，需要自动识别软件运行的环境，例如：产品类型、LCD（液晶显示器，Liquid Crystal Display）器件型号、射频的频段等，以便在软件运行中针对硬件做不同处理。In the current software general-purpose platform development, it is necessary to automatically identify the environment in which the software runs, such as: product type, LCD (Liquid Crystal Display, Liquid Crystal Display) device model, radio frequency band, etc., in order to perform different processing for the hardware during software operation.
目前在区分单板或器件型号时，通常在不同单板上焊接多个不同阻值的电阻，通过使用GPIO信号（通用输入输出信号,General Purpose Input Output）测量单板上对应的电阻，进而获得该多个不同电阻的阻值。根据单板上对应电阻的不同阻值以及顺序组合，以及配合软件来区分测试单板或器件的型号。下面通过图1说明其实现方式：At present, when distinguishing boards or device models, multiple resistors with different resistance values are usually welded on different boards, and the corresponding resistance on the board is measured by using the GPIO signal (General Purpose Input Output signal), and then obtained The resistance values of the plurality of different resistors. According to the different resistance values and sequence combinations of the corresponding resistors on the board, and cooperate with the software to distinguish the model of the test board or device. The following figure 1 illustrates its implementation:
根据设备器件列表对第一识别电阻101、第二识别电阻102、第三识别电阻103、第四识别电阻104和第一测量电阻105、第二测量电阻106、第三测量电阻107、第四测量电阻108两种类型的电阻进行焊接。该种方式通过对信号控制器120上的对应的测量端口施加GPIO信号实现对识别电阻的测量。开机后，在对应的测量端口上施加GPIO信号，GPIO信号包括1（高电平信号）、0（低电平信号）或是高阻3种状态，能够识别81(4个接口共34种)种组合。According to the list of equipment components, the first identification resistor 101, the second identification resistor 102, the third identification resistor 103, the fourth identification resistor 104, the first measurement resistor 105, the second measurement resistor 106, the third measurement resistor 107, and the fourth measurement resistor Resistor 108 Two types of resistors for soldering. In this manner, the measurement of the identification resistance is implemented by applying a GPIO signal to a corresponding measurement port on the signal controller 120 . After starting up, apply the GPIO signal on the corresponding measurement port. The GPIO signal includes 1 (high level signal), 0 (low level signal) or high impedance, and can identify 81 (4 interfaces, a total of 34 types) kind of combination.
该方法的缺点是：当用于大量产品进行型号测量时，该方法需要的焊接在单板上的电阻和检测信号线的数量多，造成识别电路复杂、识别成本高的问题。The disadvantage of this method is that when it is used for model measurement of a large number of products, this method requires a large number of resistors and detection signal lines welded on the single board, resulting in complex identification circuits and high identification costs.
发明内容Contents of the invention
本发明实施例提供了一种识别器件类别的电路、电路板、终端设备及信号控制器，以解决现有识别电路技术中识别电路复杂、识别成本高的问题。Embodiments of the present invention provide a circuit, a circuit board, a terminal device, and a signal controller for identifying device types, so as to solve the problems of complex identification circuits and high identification costs in existing identification circuit technologies.
为了解决上述技术问题，本发明实施例公开了如下技术方案：In order to solve the above technical problems, the embodiment of the present invention discloses the following technical solutions:
第一方面，本发明实施例提供一种识别器件类别的电路，其特征在于，该电路包括：In the first aspect, an embodiment of the present invention provides a circuit for identifying a device category, wherein the circuit includes:
测量电阻，所述测量电阻的一端与电源连接；Measuring resistance, one end of the measuring resistance is connected to a power supply;
串联在一起的N个识别电阻,所述串联在一起的N个识别电阻的一端与所述测量电阻的另一端串联连接，所述串联在一起的N个识别电阻的另一端接地；所述N为大于1的自然数；N identifying resistors connected in series, one end of the N identifying resistors connected in series with the other end of the measuring resistor, the other end of the N identifying resistors connected in series is grounded; the N is a natural number greater than 1;
信号控制器，信号控制器包括至少一个模数检测信号端口、至少N-1个通用输入输出信号端口，其中，一个模数检测信号端口通过模数检测信号线连接于所述测量电阻和与所述测量电阻直接相连的识别电阻之间，N-1个通用输入输出信号端口通过通用输入输出信号线分别连接于每两个串联在一起的识别电阻之间；A signal controller, the signal controller includes at least one analog-to-digital detection signal port, at least N-1 general input and output signal ports, wherein one analog-to-digital detection signal port is connected to the measurement resistance and to the Between the identification resistors directly connected to the measurement resistors, N-1 general-purpose input and output signal ports are respectively connected between every two identification resistors connected in series through the general-purpose input and output signal lines;
所述信号控制器通过模数检测信号端口输入的模数检测信号和通用输入输出信号端口输出的通用输入输出信号和所述测量电阻确定所述串联在一起的N个识别电阻的阻值，并根据所述串联在一起的N个识别电阻的阻值对所述器件的类别进行识别。The signal controller determines the resistance value of the N identification resistors connected in series through the analog-digital detection signal input by the analog-digital detection signal port, the general-purpose input-output signal output by the general-purpose input-output signal port and the measurement resistance, and The type of the device is identified according to the resistance values of the N identification resistors connected in series.
在第一方面的第一种可能的实现方式中，所述信号控制器通过模数检测信号端口输入的模数检测信号和通用输入输出信号端口输出的通用输入输出信号和所述测量电阻确定所述串联在一起的N个识别电阻的阻值，具体包括：In a first possible implementation manner of the first aspect, the signal controller determines the value of The resistance values of the N identification resistors connected in series, specifically include:
将所有通用输入输出信号端口置位为高阻，模数检测信号端口获得所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值；All general input and output signal ports are set to high impedance, and the analog-to-digital detection signal port obtains the voltage value between the measurement resistance and the identification resistance directly connected to the measurement resistance;
按照接地侧至电源侧的方向，逐一将通用输入输出信号端口置位为低电平，获得N-1个模数检测信号端口的电压值；According to the direction from the ground side to the power supply side, set the general input and output signal ports to low level one by one to obtain the voltage value of N-1 modulus detection signal ports;
根据所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值、获得的所述N-1个模数检测信号端口的电压值，以及所有通用输入输出信号端口的输出值，确定每一个识别电阻的阻值。According to the voltage value between the measurement resistance and the identification resistance directly connected to the measurement resistance, the obtained voltage values of the N-1 analog-to-digital detection signal ports, and the output values of all general input and output signal ports, Determine the value of each identified resistor.
结合所述第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述根据所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值、获取的所述N-1个模数检测信号端口的电压值，以及所有通用输入输出信号端口的输出值，确定每一个识别电阻的阻值，具体包括：With reference to the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the The voltage value, the obtained voltage value of the N-1 modulus detection signal ports, and the output values of all general input and output signal ports determine the resistance value of each identification resistor, specifically including:
根据所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值、获取的所述N-1个模数检测信号端口的电压值、所有通用输入输出信号端口的输出值，以及测量电阻和电源电压，逐一确定未被置位过低电平的通用输入输出信号端口与置位于低电平的通用输入输出信号端口之间的识别电阻，到与测量电阻相连的识别电阻的之间串联阻值之和，并根据逐一确定的该串联阻值之和确定每一个识别电阻的阻值。According to the voltage value between the measurement resistance and the identification resistance directly connected to the measurement resistance, the obtained voltage values of the N-1 analog-to-digital detection signal ports, the output values of all general input and output signal ports, and Measure the resistance and power supply voltage, and determine one by one the identification resistance between the general-purpose input and output signal ports that are not set too low and the general-purpose input and output signal ports that are set at a low level, and the distance between the identification resistance connected to the measurement resistance. The sum of the series resistance values between them, and the resistance value of each identification resistor is determined according to the sum of the series resistance values determined one by one.
在第一方面的第三种可能的实现方式中，所述信号控制器根据所述串联在一起的N个识别电阻的阻值对所述器件的类别进行识别，具体包括：In a third possible implementation manner of the first aspect, the signal controller identifies the type of the device according to the resistance values of the N identification resistors connected in series, which specifically includes:
获取所述串联在一起的N个识别电阻的阻值与器件型号的对应关系，根据所述对应关系以及所述串联在一起的N个识别电阻的阻值对所述器件的类别进行识别。The corresponding relationship between the resistance values of the N identification resistors connected in series and the device model is obtained, and the type of the device is identified according to the corresponding relationship and the resistance values of the N identification resistors connected in series.
第二方面，本发明实施例提供一种电路板，包括上述的识别器件类别的电路，In the second aspect, an embodiment of the present invention provides a circuit board, including the above-mentioned circuit for identifying the type of device,
其中,所述信号控制器为所述电路板上的处理器芯片。Wherein, the signal controller is a processor chip on the circuit board.
第三方面，本发明实施例提供一种终端设备，包括上述的电路板。In a third aspect, an embodiment of the present invention provides a terminal device, including the above circuit board.
第四方面，本发明实施例提供一种信号控制器，用于识别器件的类别，所述器件上包括：In the fourth aspect, the embodiment of the present invention provides a signal controller, which is used to identify the category of the device, and the device includes:
测量电阻，所述测量电阻的一端与电源连接；Measuring resistance, one end of the measuring resistance is connected to a power supply;
串联在一起的N个识别电阻,所述串联在一起的N个识别电阻的一端与所述测量电阻的另一端串联连接，所述串联在一起的N个识别电阻的另一端接地；所述N为大于1的自然数；N identifying resistors connected in series, one end of the N identifying resistors connected in series with the other end of the measuring resistor, the other end of the N identifying resistors connected in series is grounded; the N is a natural number greater than 1;
所述信号控制器包括至少一个模数检测信号端口、至少N-1个通用输入输出信号端口，其中，一个模数检测信号端口适于通过模数检测信号线连接于所述测量电阻和与所述测量电阻直接相连的识别电阻之间，N-1个通用输入输出信号端口适于通过通用输入输出信号线分别连接于每两个串联在一起的识别电阻之间；The signal controller includes at least one analog-to-digital detection signal port and at least N-1 general-purpose input and output signal ports, wherein one analog-to-digital detection signal port is suitable for being connected to the measurement resistor and to the Between the identification resistors directly connected to the measurement resistors, N-1 general input and output signal ports are suitable to be connected between every two identification resistors connected in series through the general input and output signal lines;
所述信号控制器通过模数检测信号端口输入的模数检测信号和通用输入输出信号端口输出的通用输入输出信号和所述测量电阻确定所述串联在一起的N个识别电阻的阻值，并根据所述串联在一起的N个识别电阻的阻值对所述器件的类别进行识别。The signal controller determines the resistance value of the N identification resistors connected in series through the analog-digital detection signal input by the analog-digital detection signal port, the general-purpose input-output signal output by the general-purpose input-output signal port and the measurement resistance, and The type of the device is identified according to the resistance values of the N identification resistors connected in series.
本发明实施例中，通过将识别电阻进行串联，并利用信号控制器中的模数检测信号端口输入的模数检测信号、通用输入输出信号端口输出的通用输入输出信号和测量电阻，来确定串联在一起的各个识别电阻的阻值，从而对器件的类别进行识别，该识别器件类别的电路使用元器件少、线路简单、容易测量，不仅提高了识别器件类别的种类，并且减少了识别器件类别的电路的复杂度，降低了识别成本。In the embodiment of the present invention, by connecting the identification resistors in series, and using the analog-to-digital detection signal input from the analog-to-digital detection signal port in the signal controller, the general-purpose input-output signal output from the general-purpose input-output signal port, and the measurement resistance, the series connection is determined. The resistance value of each identification resistor together can identify the category of the device. The circuit of the identification device category uses fewer components, the circuit is simple, and it is easy to measure. The complexity of the circuit reduces the identification cost.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是现有技术中的识别电路结构图；Fig. 1 is a structural diagram of an identification circuit in the prior art;
图2是本发明实施例1提供的电路结构示意图；FIG. 2 is a schematic diagram of a circuit structure provided by Embodiment 1 of the present invention;
图3是本发明实施例1提供的方法流程图；Fig. 3 is a flow chart of the method provided by Embodiment 1 of the present invention;
图4是本发明实施例1提供的步骤301对应的等效电路图；FIG. 4 is an equivalent circuit diagram corresponding to step 301 provided in Embodiment 1 of the present invention;
图5是本发明实施例1提供的步骤302对应的等效电路图；FIG. 5 is an equivalent circuit diagram corresponding to step 302 provided in Embodiment 1 of the present invention;
图6是本发明实施例1提供的步骤303对应的等效电路图；FIG. 6 is an equivalent circuit diagram corresponding to step 303 provided in Embodiment 1 of the present invention;
图7是本发明实施例1提供的2个识别电阻电路结构示意图；7 is a schematic structural diagram of two identification resistor circuits provided by Embodiment 1 of the present invention;
图8是本发明实施例2提供的电路结构示意图；FIG. 8 is a schematic diagram of a circuit structure provided by Embodiment 2 of the present invention;
图9是本发明实施例2提供的方法流程图。FIG. 9 is a flow chart of the method provided by Embodiment 2 of the present invention.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
为了解决现有技术识别电路使用的元器件多、识别种类少等不足，本发明提供了一种识别器件类别的电路、电路板、终端设备及信号控制器。In order to solve the problems of many components and few types of identification used in the identification circuit of the prior art, the present invention provides a circuit, a circuit board, a terminal device and a signal controller for identifying the type of devices.
实施例1Example 1
本发明第一个实施例提供了一种识别器件类别的电路，用于对单板或需要识别型号的器件进行识别。对于需要识别型号的器件或单板，本发明实施例需要在不同单板上串联焊接多个不同阻值的电阻组合，从而对器件或单板的类别进行识别。本发明实施例以串联在一起的识别电阻为3个为例，该电路图如图2所示，该电路包括：测量电阻、串联在一起的3个识别电阻和信号控制器；其中，所述测量电阻的一端与电源连接，所述测量电阻的另一端与串联在一起的3个识别电阻的一端连接，该串联在一起的3个识别电阻的另一端接地，在本发明实施例中，从电源侧至接地侧的方向，定义串联在一起的3个识别电阻分别为识别电阻R1、识别电阻R2和识别电阻R3；所述信号控制器包括至少一个模数检测AD信号端口、至少2个通用输入输出GPIO信号端口，其中，一个AD信号端口通过AD信号线连接于所述测量电阻和识别电阻R1之间，GPIO1信号端口通过GPIO1信号线连接于识别电阻R1和识别电阻R2之间，GPIO2信号端口通过GPIO2信号线连接于识别电阻R2和识别电阻R3之间。The first embodiment of the present invention provides a circuit for identifying the category of a device, which is used to identify a single board or a device that needs to be identified. For a device or a single board that needs to be identified, the embodiment of the present invention needs to weld multiple resistor combinations with different resistance values in series on different boards, so as to identify the type of the device or single board. In the embodiment of the present invention, three identification resistors connected in series are taken as an example. The circuit diagram is shown in FIG. One end of the resistor is connected to the power supply, the other end of the measuring resistor is connected to one end of the three identification resistors connected in series, and the other end of the three identification resistors connected in series is grounded. In the embodiment of the present invention, from the power supply The direction from side to ground side defines three identification resistors connected in series as identification resistance R1, identification resistance R2 and identification resistance R3; the signal controller includes at least one modulus detection AD signal port and at least two general-purpose inputs Output GPIO signal port, wherein, an AD signal port is connected between the measurement resistance and the identification resistance R1 through the AD signal line, the GPIO1 signal port is connected between the identification resistance R1 and the identification resistance R2 through the GPIO1 signal line, and the GPIO2 signal port It is connected between the identification resistor R2 and the identification resistor R3 through the GPIO2 signal line.
其中，当识别电阻的阻值为0时，测量电阻可以对电路起到保护作用。该测量电阻的阻值为已知阻值，该阻值需要限制在合适的区域内，且需要根据电源电压进行设定。Wherein, when the resistance value of the identified resistor is 0, the measured resistor can protect the circuit. The resistance value of the measurement resistor is a known resistance value, and the resistance value needs to be limited in an appropriate area, and needs to be set according to the power supply voltage.
在本发明实施例中，信号控制器可以为外部控制器；也可以为测量单板上的处理器芯片，比如高通芯片。In the embodiment of the present invention, the signal controller may be an external controller; it may also be a processor chip on the measurement board, such as a Qualcomm chip.
信号控制器通过AD端口输入的AD信号和GPIO1端口、GPIO2端口分别输出的GPIO1信号和GPIO2信号，确定识别电阻R1、识别电阻R2和识别电阻R3的阻值，如图3所示，具体包括：The signal controller determines the resistance values of the identification resistor R1, the identification resistor R2, and the identification resistor R3 through the AD signal input by the AD port and the GPIO1 signal and GPIO2 signal respectively output by the GPIO1 port and the GPIO2 port, as shown in Figure 3, specifically including:
步骤301：将GPIO1端口和GPIO2端口的输出值置位为高阻，AD端口获得AD信号的电压值1；Step 301: Set the output values of the GPIO1 port and the GPIO2 port to high impedance, and the AD port obtains the voltage value 1 of the AD signal;
其中，将GPIO1端口和GPIO2端口的输出值置位为高阻包括：将GPIO1信号线和GPIO2信号线悬空。Wherein, setting the output values of the GPIO1 port and the GPIO2 port as high impedance includes: suspending the GPIO1 signal line and the GPIO2 signal line.
在本发明实施例中，将GPIO1端口和GPIO2端口的输出值置位为高阻后，对应于图2的等效电路如图4所示，AD端口获得的AD信号的电压值1为R1+R2+R3的电压值。In the embodiment of the present invention, after the output values of the GPIO1 port and the GPIO2 port are set to high impedance, the equivalent circuit corresponding to Fig. 2 is shown in Fig. 4, and the voltage value 1 of the AD signal obtained by the AD port is R1+ The voltage value of R2+R3.
步骤302：将GPIO1端口的输出值置位为高阻，将GPIO2端口的输出值置位为低电平，AD端口获得AD信号的电压值2；Step 302: Set the output value of the GPIO1 port to high impedance, set the output value of the GPIO2 port to low level, and the AD port obtains the voltage value of the AD signal 2;
其中，将GPIO2端口的输出值置位为低电平表明，该GPIO2信号线将识别电阻R3短路。Wherein, setting the output value of the GPIO2 port to a low level indicates that the GPIO2 signal line will identify the short circuit of the resistor R3.
在本发明实施例中，该步骤302对应于图2的等效电路如图5所示，AD端口获得的AD信号的电压值2为R1+R2的电压值。In the embodiment of the present invention, this step 302 corresponds to the equivalent circuit shown in FIG. 2 as shown in FIG. 5 , and the voltage value 2 of the AD signal obtained at the AD port is the voltage value of R1+R2.
步骤303：将GPIO1端口和GPIO2端口的输出值均置位为低电平，AD端口获得AD信号的电压值3；Step 303: Set the output values of the GPIO1 port and the GPIO2 port to low level, and the AD port obtains the voltage value 3 of the AD signal;
在本发明实施例中，该步骤303对应于图2的等效电路如图6所示，AD端口获得的AD信号的电压值3为R1的电压值。In the embodiment of the present invention, step 303 corresponds to the equivalent circuit in FIG. 2 as shown in FIG. 6 , and the voltage value 3 of the AD signal obtained at the AD port is the voltage value of R1.
步骤304：根据AD端口获得的AD信号的电压值1、电压值2和电压值3，以及根据电源电压和测量电阻的阻值，分别计算得到测量电阻的电流，并根据电流分别计算得到R1+R2+R3、R1+R2、R1的阻值；Step 304: According to the voltage value 1, voltage value 2 and voltage value 3 of the AD signal obtained by the AD port, and according to the power supply voltage and the resistance value of the measurement resistor, calculate the current of the measurement resistor respectively, and calculate according to the current to obtain R1+ The resistance value of R2+R3, R1+R2, R1;
测量电阻的电流=(电源电压-AD信号的电压值)/测量电阻的阻值；The current of the measuring resistor = (power supply voltage - the voltage value of the AD signal) / the resistance of the measuring resistor;
R1+R2+R3=AD信号的电压值1/测量电阻的电流；R1+R2+R3=Voltage value of AD signal 1/current of measuring resistor;
R1+R2=AD信号的电压值2/测量电阻的电流；R1+R2=Voltage value of AD signal 2/current of measuring resistor;
R1=AD信号的电压值3/测量电阻的电流。R1=voltage value of AD signal 3/current of measuring resistor.
步骤305：根据上述计算结果，分别计算得到该三个识别电阻中每个识别电阻的阻值；Step 305: Calculate and obtain the resistance value of each identification resistor among the three identification resistors according to the above calculation results;
其中，根据上述可以获得R1的阻值，则R2为R1+R2与R1的差值，R3为R1+R2+R3与R1+R2的差值。Wherein, the resistance value of R1 can be obtained according to the above, then R2 is the difference between R1+R2 and R1, and R3 is the difference between R1+R2+R3 and R1+R2.
步骤306：将每个识别电阻的阻值和基准电阻R的阻值的比值四舍五入，使得识别电阻的阻值为基准电阻R的整数倍；Step 306: Round off the ratio of the resistance value of each identification resistor to the resistance value of the reference resistor R, so that the resistance value of the identification resistor is an integer multiple of the reference resistor R;
由于在上述计算过程中，计算得到的识别电阻的阻值可能不是整数，因此需要由基准电阻R对识别电阻的阻值化为整数，从而根据得到的识别电阻的阻值组合确定识别器件的类别。Since in the above calculation process, the calculated resistance value of the identification resistance may not be an integer, it is necessary to convert the resistance value of the identification resistance from the reference resistance R into an integer, so as to determine the category of the identification device according to the resistance combination of the identification resistance obtained .
步骤307：根据识别电阻R1、识别电阻R2和识别电阻R3的阻值的组合，以及预先获取的识别电阻的阻值组合与识别电路的类别的对应关系，得到该电路的类别的型号。Step 307: According to the combination of the resistance values of the identification resistor R1, the identification resistor R2 and the identification resistor R3, and the corresponding relationship between the combination of the resistance value of the identification resistor obtained in advance and the type of the identification circuit, obtain the model of the type of the circuit.
结合AD信号的测量量程及阻值边界容错问题，设电阻测量最小精度为R（即R为基准电阻），测量只能区分R的整数倍，电阻阻值级别为1R到8R.以R1+R2+R3为8R为例，初步计算能得到的取值组合如下表1所示：Combined with the measurement range of the AD signal and the fault tolerance problem of the resistance value boundary, the minimum resistance measurement accuracy is set to R (that is, R is the reference resistance), the measurement can only distinguish the integer multiple of R, and the resistance resistance level is 1R to 8R. Take R1+R2 +R3 is 8R as an example, the value combinations that can be obtained through preliminary calculation are shown in Table 1 below:
表1Table 1
这个方法的限制条件是：每个电阻有0R-8R共9种取值，但是单个电阻、两个电阻串联、三个电阻串联的值也必须在0R-8R之间。The limitation of this method is that each resistor has 9 values from 0R to 8R, but the value of a single resistor, two resistors in series, and three resistors in series must also be between 0R and 8R.
总计共有：9+8+7+6+5+4+3+2+1=45种组合，如果去除0R，保守计算也有36种组合。如过不去除0R的情况下，利用3个识别电阻和1个测量电阻依照顺序能够有：45+36+28+21+15+10+6+3+1=165种组合方式，即能够通过将该4个电阻根据电阻阻值的顺序依次焊接在165种不同电路板上，进而区分该165种电路板的型号。There are a total of: 9+8+7+6+5+4+3+2+1=45 combinations. If 0R is removed, there are 36 combinations in conservative calculations. If 0R is not removed, there can be 45+36+28+21+15+10+6+3+1=165 combinations by using 3 identification resistors and 1 measurement resistor in order, that is, by The four resistors are sequentially welded on 165 different circuit boards according to the order of the resistance values, so as to distinguish the models of the 165 circuit boards.
其中，本发明实施例提供的方案与现有技术方案的比较结果如表2所示，如下：Wherein, the comparison result of the scheme provided by the embodiment of the present invention and the prior art scheme is shown in Table 2, as follows:
表2Table 2
由表2可知，本发明实施例通过将3个识别电阻串联连接在一起，同时利用信号控制器中的AD端口输入的AD信号和GPIO信号端口输出的GPIO信号，确定串联在一起的3个识别电阻的阻值，其中相对于现有技术而言，使用的元器件数量少、线路简单、容易测量、识别成本低；通过将识别电阻串联在一起，大大提高了电阻阻值的识别精度和识别器件种类的数量。As can be seen from Table 2, the embodiment of the present invention connects three identification resistors together in series, and at the same time utilizes the AD signal input by the AD port in the signal controller and the GPIO signal output by the GPIO signal port to determine the three identification resistors connected in series. The resistance value of the resistor, compared with the existing technology, the number of components used is small, the circuit is simple, easy to measure, and the identification cost is low; by connecting the identification resistors in series, the identification accuracy and identification of the resistance resistance value are greatly improved. The number of device types.
在本发明实施例中，还可以通过将GPIO1信号端口、GPIO2信号端口设置为输入模块，读取电平，如图7所示，利用GPIO1信号端口和GPIO2信号端口的输入值，判断器件的类别。其中，在电源电压为3.3V的模式下，低电平为0-0.8V，2.7-3.3V为高电平，当GPIO1信号端口或GPIO2信号端口测量值处于低电平时，则输入值为0；当GPIO1信号端口或GPIO2信号端口测量值处于高电平时，则输入值为1。根据GPIO1信号端口或GPIO2信号端口的输入值的组合判断识别电路型号。图7中根据两个识别电阻可以组合4种型号。In the embodiment of the present invention, the level can also be read by setting the GPIO1 signal port and GPIO2 signal port as input modules, as shown in Figure 7, using the input values of the GPIO1 signal port and GPIO2 signal port to determine the category of the device . Among them, in the mode of power supply voltage 3.3V, low level is 0-0.8V, 2.7-3.3V is high level, when the measured value of GPIO1 signal port or GPIO2 signal port is at low level, the input value is 0 ; When the measured value of the GPIO1 signal port or GPIO2 signal port is at high level, the input value is 1. According to the combination of the input value of GPIO1 signal port or GPIO2 signal port, the identification circuit model is judged. In Figure 7, 4 models can be combined according to the two identification resistors.
随着芯片工艺水平的提升，AD采样精度的提升，在电路不改变的前提下，能达到更多的采样组合。With the improvement of chip technology level and the improvement of AD sampling accuracy, more sampling combinations can be achieved without changing the circuit.
实施例2Example 2
根据第一个实施例中对3个识别电阻的详细阐述，本发明第二个实施例提供了一种识别器件类别的电路，具体阐述利用N个识别电阻对电路进行识别，如图8所示，该电路包括：According to the detailed elaboration of the three identification resistors in the first embodiment, the second embodiment of the present invention provides a circuit for identifying device categories, and specifically describes the use of N identification resistors to identify the circuit, as shown in Figure 8 , the circuit consists of:
测量电阻801，所述测量电阻的一端与电源连接；Measuring resistance 801, one end of the measuring resistance is connected to the power supply;
串联在一起的N个识别电阻802,所述串联在一起的N个识别电阻的一端与所述测量电阻的另一端串联连接，所述串联在一起的N个识别电阻的另一端接地；所述N为大于1的自然数；N identifying resistors 802 connected in series, one end of the N identifying resistors connected in series with the other end of the measuring resistor, and the other end of the N identifying resistors connected in series is grounded; N is a natural number greater than 1;
信号控制器803，信号控制器包括至少一个模数检测信号端口、至少N-1个通用输入输出信号端口，其中，一个模数检测信号端口通过模数检测信号线连接于所述测量电阻和与所述测量电阻直接相连的识别电阻之间，N-1个通用输入输出信号端口通过通用输入输出信号线分别连接于每两个串联在一起的识别电阻之间；所述信号控制器用于通过模数检测信号端口输入的模数检测信号和通用输入输出信号端口输出的通用输入输出信号和所述测量电阻确定所述串联在一起的N个识别电阻的阻值，并根据所述串联在一起的N个识别电阻的阻值对所述器件类别进行识别。Signal controller 803, the signal controller includes at least one analog-to-digital detection signal port, at least N-1 general input and output signal ports, wherein one analog-to-digital detection signal port is connected to the measurement resistance and the Between the identification resistors directly connected to the measurement resistors, N-1 general-purpose input and output signal ports are respectively connected between every two identification resistors connected in series through the general-purpose input and output signal lines; The analog-to-digital detection signal input by the digital detection signal port and the general input and output signal output by the general input and output signal port and the measurement resistance determine the resistance value of the N identification resistors connected in series, and according to the The resistance values of the N identification resistors identify the type of the device.
在本发明实施例中，所述信号控制器用于确定所述串联在一起的N个识别电阻的阻值，该确定方法如图9所示，具体包括：In the embodiment of the present invention, the signal controller is used to determine the resistance values of the N identification resistors connected in series. The determination method is shown in FIG. 9 , and specifically includes:
步骤901：将所有通用输入输出信号端口置位为高阻，模数检测信号端口获得所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值；Step 901: Set all general-purpose input and output signal ports to high impedance, and obtain the voltage value between the measurement resistance and the identification resistance directly connected to the measurement resistance through the analog-to-digital detection signal port;
其中，将所有GPIO信号端口置位为高阻，则AD信号端口测量的电压值为R1+R2+……+Rn的电压值n。Among them, if all GPIO signal ports are set to high impedance, the voltage value measured by the AD signal port is the voltage value n of R1+R2+...+Rn.
步骤902：按照接地侧至电源侧的方向，逐一将通用输入输出信号端口置位为低电平，获得N-1个模数检测信号端口的电压值；Step 902: According to the direction from the ground side to the power supply side, set the general input and output signal ports to low level one by one, and obtain the voltage values of N-1 modulus detection signal ports;
其中，获得的N-1个AD信号端口的电压值包括：R1+R2+……+Rn-1的电压值n-1、R1+R2+……+Rn-2的电压值n-2、……、R1+R2的电压值2、R1的电压值1。Wherein, the obtained voltage values of N-1 AD signal ports include: voltage value n-1 of R1+R2+...+Rn-1, voltage value n-2 of R1+R2+...+Rn-2,... , The voltage value of R1+R2 is 2, and the voltage value of R1 is 1.
步骤903：根据所述测量电阻和与所述测量电阻直接相连的识别电阻之间的电压值、获取的所述N-1个模数检测信号端口的电压值、所有通用输入输出信号端口的输出值，以及测量电阻和电源电压，逐一确定未被置位过低电平的通用输入输出信号端口与置位于低电平的通用输入输出信号端口之间的识别电阻，到与测量电阻相连的识别电阻的之间串联阻值之和。Step 903: According to the voltage value between the measurement resistance and the identification resistance directly connected to the measurement resistance, the obtained voltage values of the N-1 analog-to-digital detection signal ports, and the outputs of all general input and output signal ports value, as well as the measurement resistance and power supply voltage, one by one to determine the identification resistance between the general input and output signal ports that are not set too low and the general input and output signal ports that are set at a low level, to the identification resistance connected to the measurement resistance The sum of the resistance values of the resistors connected in series.
根据公式R’=(电源电压-AD信号端口的电压值)/测量电阻的阻值，将R1+R2+……+Rn的电压值n、R1+R2+……+Rn-1的电压值n-1、R1+R2+……+Rn-2的电压值n-2、……、R1+R2的电压值2、R1的电压值1逐一代入，得到R1+R2+……+Rn、R1+R2+……+Rn-1、R1+R2+……+Rn-2、R1+R2、R1的阻值。According to the formula R'=(power supply voltage-voltage value of AD signal port)/resistance value of the measuring resistor, the voltage value n of R1+R2+...+Rn, the voltage value n of R1+R2+...+Rn-1- 1. The voltage value n-2 of R1+R2+...+Rn-2,..., the voltage value of R1+R2 2, and the voltage value 1 of R1 are substituted one by one to get R1+R2+...+Rn, R1+R2+... …+Rn-1, R1+R2+…+Rn-2, R1+R2, resistance of R1.
步骤904：根据确定的该串联阻值之和确定每一个识别电阻的阻值；Step 904: Determine the resistance value of each identification resistor according to the determined sum of the series resistance values;
由于步骤803中得到R1的阻值，因此，R2=(R1+R2)-R1,R3=(R1+R2+R3)-(R1+R2),……，Rn=(R1+R2+……+Rn)-(R1+R2+……+Rn-1)，从而得到每个识别电阻的阻值。Since the resistance value of R1 is obtained in step 803, R2=(R1+R2)-R1, R3=(R1+R2+R3)-(R1+R2),..., Rn=(R1+R2+...+ Rn)-(R1+R2+...+Rn-1), so as to obtain the resistance value of each identification resistor.
步骤905：获取所述串联在一起的N个识别电阻的阻值与器件型号的对应关系，根据所述对应关系以及所述串联在一起的N个识别电阻的阻值对器件的类别进行识别。Step 905: Obtain the corresponding relationship between the resistance values of the N identification resistors connected in series and the device model, and identify the type of the device according to the corresponding relationship and the resistance values of the N identification resistors connected in series.
本发明实施例通过将识别电阻进行串联，并利用信号控制器中的模数检测信号端口输入的模数检测信号、通用输入输出信号端口输出的通用输入输出信号和测量电阻，来确定串联在一起的各个识别电阻的阻值，从而对器件的类别进行识别，该识别器件类别的电路使用元器件少、线路简单、容易测量，不仅提高了识别器件类别的种类，并且减少了识别器件类别的电路的复杂度，降低了识别成本。In the embodiment of the present invention, the identification resistors are connected in series, and the analog-to-digital detection signal input from the analog-to-digital detection signal port in the signal controller, the general-purpose input-output signal output from the general-purpose input-output signal port, and the measurement resistance are used to determine whether the resistors connected in series The resistance value of each identification resistor can be used to identify the type of device. The circuit for identifying the type of device uses fewer components, the circuit is simple, and it is easy to measure. The complexity reduces the identification cost.
实施例3Example 3
本发明第三个实施例还提供了一种电路板，包括如实施例1～实施例2中任一个实施例所述的识别器件类别的电路。The third embodiment of the present invention also provides a circuit board, including the circuit for identifying the device category as described in any one of the first to second embodiments.
其中,所述信号控制器为所述电路板上的处理器芯片。Wherein, the signal controller is a processor chip on the circuit board.
实施例4Example 4
本发明第四个实施例还提供了一种终端设备，包括如实施例3所述的电路板。所述终端设备可以是移动终端,比如手机,平板电脑,笔记本电脑,电子书等等,也可以是其他终端,比如台式电脑,机顶盒等等.The fourth embodiment of the present invention also provides a terminal device, including the circuit board as described in the third embodiment. The terminal device may be a mobile terminal, such as a mobile phone, a tablet computer, a notebook computer, an e-book, etc., or other terminals, such as a desktop computer, a set-top box, etc.
实施例5Example 5
本发明第五个实施例还提供了一种信号控制器，用于识别器件的类别，所述器件上包括：The fifth embodiment of the present invention also provides a signal controller, which is used to identify the category of the device, and the device includes:
测量电阻，所述测量电阻的一端与电源连接；Measuring resistance, one end of the measuring resistance is connected to a power supply;
串联在一起的N个识别电阻,所述串联在一起的N个识别电阻的一端与所述测量电阻的另一端串联连接，所述串联在一起的N个识别电阻的另一端接地；所述N为大于1的自然数；N identifying resistors connected in series, one end of the N identifying resistors connected in series with the other end of the measuring resistor, the other end of the N identifying resistors connected in series is grounded; the N is a natural number greater than 1;
所述信号控制器包括至少一个模数检测信号端口、至少N-1个通用输入输出信号端口，其中，一个模数检测信号端口适于通过模数检测信号线连接于所述测量电阻和与所述测量电阻直接相连的识别电阻之间，N-1个通用输入输出信号端口适于通过通用输入输出信号线分别连接于每两个串联在一起的识别电阻之间；The signal controller includes at least one analog-to-digital detection signal port and at least N-1 general-purpose input and output signal ports, wherein one analog-to-digital detection signal port is suitable for being connected to the measurement resistor and to the Between the identification resistors directly connected to the measurement resistors, N-1 general input and output signal ports are suitable to be connected between every two identification resistors connected in series through the general input and output signal lines;
所述信号控制器通过模数检测信号端口输入的模数检测信号和通用输入输出信号端口输出的通用输入输出信号和所述测量电阻确定所述串联在一起的N个识别电阻的阻值，并根据所述串联在一起的N个识别电阻的阻值对所述器件的类别进行识别。The signal controller determines the resistance value of the N identification resistors connected in series through the analog-digital detection signal input by the analog-digital detection signal port, the general-purpose input-output signal output by the general-purpose input-output signal port and the measurement resistance, and The type of the device is identified according to the resistance values of the N identification resistors connected in series.
其中,该信号控制器可以是一种处理器芯片,也可以是单独的一个部件,在此不做限定。Wherein, the signal controller may be a processor chip, or a separate component, which is not limited here.
很显然，本实施例可以参考前述实施例的内容，其相关的内容不再赘述。Obviously, in this embodiment, reference may be made to the contents of the preceding embodiments, and the related contents will not be repeated here.
本领域普通技术人员将会理解，本发明的各个方面、或各个方面的可能实现方式可以被具体实施为系统、方法或者计算机程序产品。因此，本发明的各方面、或各个方面的可能实现方式可以采用完全硬件实施例、完全软件实施例(包括固件、驻留软件等等)，或者组合软件和硬件方面的实施例的形式，在这里都统称为“电路”、“模块”或者“系统”。此外，本发明的各方面、或各个方面的可能实现方式可以采用计算机程序产品的形式，计算机程序产品是指存储在计算机可读介质中的计算机可读程序代码。Those of ordinary skill in the art will understand that various aspects of the present invention, or possible implementations of various aspects, may be embodied as systems, methods or computer program products. Accordingly, aspects of the present invention, or possible implementations of various aspects, may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, etc.), or an embodiment combining software and hardware aspects, described in These are collectively referred to herein as "circuits," "modules," or "systems." In addition, aspects of the present invention, or possible implementations of various aspects, may take the form of computer program products, and computer program products refer to computer-readable program codes stored in computer-readable media.
计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质包含但不限于电子、磁性、光学、电磁、红外或半导体系统、设备或者装置，或者前述的任意适当组合，如随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器（EPROM或者快闪存储器）、光纤、便携式只读存储器(CD-ROM)。The computer readable medium may be a computer readable signal medium or a computer readable storage medium. Computer-readable storage media include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any suitable combination of the foregoing, such as random access memory (RAM), read-only memory (ROM), Erase Programmable Read-Only Memory (EPROM or Flash), Fiber Optic, Portable Read-Only Memory (CD-ROM).
计算机中的处理器读取存储在计算机可读介质中的计算机可读程序代码，使得处理器能够执行在流程图中每个步骤、或各步骤的组合中规定的功能动作；生成实施在框图的每一块、或各块的组合中规定的功能动作的装置。The processor in the computer reads the computer-readable program code stored in the computer-readable medium, so that the processor can execute the functional actions specified in each step in the flow chart, or a combination of steps; A device that performs functional actions specified in each block or a combination of blocks.
计算机可读程序代码可以完全在用户的计算机上执行、部分在用户的计算机上执行、作为单独的软件包、部分在用户的计算机上并且部分在远程计算机上，或者完全在远程计算机或者服务器上执行。也应该注意，在某些替代实施方案中，在流程图中各步骤、或框图中各块所注明的功能可能不按图中注明的顺序发生。例如，依赖于所涉及的功能，接连示出的两个步骤、或两个块实际上可能被大致同时执行，或者这些块有时候可能被以相反顺序执行。The computer readable program code may execute entirely on the user's computer, partly on the user's computer, as a separate software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server . It should also be noted that, in some alternative implementations, the functions noted at the steps in the flowcharts or blocks in the block diagrams may occur out of the order noted in the figures. For example, two steps, or two blocks shown in succession, may in fact be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617062.2ACN103675531B (en) | 2013-11-27 | 2013-11-27 | Circuit for recognizing classes of devices, circuit board, terminal equipment and signal controller |
| PCT/CN2014/092123WO2015078351A1 (en) | 2013-11-27 | 2014-11-25 | Circuit for recognizing device category, circuit board, terminal device and signal controller |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617062.2ACN103675531B (en) | 2013-11-27 | 2013-11-27 | Circuit for recognizing classes of devices, circuit board, terminal equipment and signal controller |
| Publication Number | Publication Date |
|---|---|
| CN103675531A CN103675531A (en) | 2014-03-26 |
| CN103675531Btrue CN103675531B (en) | 2017-01-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617062.2AActiveCN103675531B (en) | 2013-11-27 | 2013-11-27 | Circuit for recognizing classes of devices, circuit board, terminal equipment and signal controller |
| Country | Link |
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| CN (1) | CN103675531B (en) |
| WO (1) | WO2015078351A1 (en) |
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