CN114090364A - Excitation signal transmission control method, excitation signal transmission control device, excitation signal generator, and medium - Google Patents

Excitation signal transmission control method, excitation signal transmission control device, excitation signal generator, and medium Download PDF

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CN114090364A
CN114090364A CN202111433706.3A CN202111433706A CN114090364A CN 114090364 A CN114090364 A CN 114090364A CN 202111433706 A CN202111433706 A CN 202111433706A CN 114090364 A CN114090364 A CN 114090364A
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excitation
data packet
test
target input
test equipment
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刘金强
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Beijing Wuxin Technology Co ltd
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Beijing Wuxin Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26—Functional testing
    • G06F11/263—Generation of test inputs, e.g. test vectors, patterns or sequences ; with adaptation of the tested hardware for testability with external testers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
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Abstract

The embodiment of the invention discloses a method and a device for controlling the sending of an excitation signal, an excitation signal generator and a medium. The method comprises the steps of obtaining a test task matched with test equipment; analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel; forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel; and respectively sending each interface data fragment message to the test equipment at different driving time. The technical scheme of the embodiment of the invention provides an excitation signal generator supporting simultaneous multi-channel data transmission, and the effect of simplifying the driving work of a driver is achieved.

Description

Excitation signal transmission control method, excitation signal transmission control device, excitation signal generator, and medium
Technical Field
The embodiment of the invention relates to the internet communication technology, in particular to a method and a device for controlling sending of an excitation signal, an excitation signal generator and a medium.
Background
In the hardware development process, various functional tests need to be completed, and generally, a Device to be completed is called a DUT (Device Under Test).
In the prior art, an interface protocol of a device adjacent to a DUT is simulated mainly by an excitation signal transmitter (generally abbreviated as Simulator), and an interface signal matched with the adjacent device is generated. And further, the excitation signals are sent to the DUT by a real interface protocol so as to realize the functional test of the DUT. Typically, an excitation signal transmitter sends an excitation signal to a driver, which effects signal driving of the DUT.
In the process of implementing the invention, the inventor finds that the prior art has the following defects: the existing excitation signal generator can only send a single-channel and single-form excitation signal, if the excitation signal needs to be provided for a multi-channel DUT, the reprocessing of the excitation signal needs to be implemented in the driver, which requires very complex processing logic to be built in the driver, so that the driving operation is complex and error-prone, and further, the maintenance and integration process of the test environment at a later stage becomes very complex.
Disclosure of Invention
The embodiment of the invention provides an excitation signal sending control method, an excitation signal sending control device, an excitation signal generator and a medium, and aims to provide an excitation signal generator which simultaneously supports multi-channel data sending and achieve the effect of simplifying the driving work of a driver.
In a first aspect, an embodiment of the present invention provides a method for controlling transmission of an excitation signal, where the method includes:
acquiring a test task matched with test equipment;
analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel;
forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel;
and respectively sending each interface data fragment message to the test equipment at different driving time.
In a second aspect, an embodiment of the present invention further provides an excitation signal transmission control apparatus, including:
the test task acquisition module is used for acquiring a test task matched with the test equipment;
the excitation data packet construction module is used for analyzing the test task, determining target input channels matched with the test equipment and constructing excitation data packets respectively corresponding to each target input channel;
the interface data fragment message forming module is used for forming a plurality of interface data fragment messages aiming at all input interfaces of the testing equipment according to an interface protocol and a testing task of the testing equipment and excitation data packets respectively corresponding to each target input channel;
and the interface data fragment message sending module is used for sending each interface data fragment message to the test equipment at different driving moments.
In a third aspect, an embodiment of the present invention further provides an excitation signal generator, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the excitation signal transmission control method according to any embodiment of the present invention.
In a fourth aspect, the present invention further provides a storage medium storing computer-executable instructions, where the computer-executable instructions, when executed by a processor, implement a method for controlling transmission of an excitation signal according to any embodiment of the present invention.
The embodiment of the invention obtains the test task matched with the test equipment; analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel; forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel; the method has the advantages that each interface data fragment message is respectively sent to the test equipment at different driving moments, the problems that the driving work is complex and easy to be wrong due to the fact that the existing complex excitation signals are generated by the driver are solved, a new mode that the multi-channel configurable complex excitation signals are generated by the excitation generator is provided, the working complexity of the driver is greatly simplified, the construction difficulty of the complex excitation signals is simplified, and the construction flexibility and the universality of the complex excitation signals are improved.
Drawings
Fig. 1 is a flowchart of a method for controlling transmission of an excitation signal according to a first embodiment of the present invention;
fig. 2 is a flowchart of another excitation signal transmission control method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an excitation signal transmission control apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an excitation signal generator according to a fourth embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
Example one
Fig. 1 is a flowchart of a method for controlling transmission of stimulus signals according to an embodiment of the present invention, which is applicable to a case where a stimulus signal generator directly provides a multi-channel configurable complex stimulus signal, and which can be implemented by a stimulus signal transmission control apparatus, which can be implemented by software and/or hardware and is integrated in a stimulus signal generator for providing stimulus signals to test equipment. Specifically, referring to fig. 1, the method specifically includes the following steps:
and S110, acquiring a test task matched with the test equipment.
The test device may be an electronic device to be tested, and generally includes a plurality of input channels for respectively and independently inputting different input signals. A test task particularly refers to information describing the signal form or signal content of the stimulus signal input to one or more input channels in the test device.
In a specific example, it is assumed that the test equipment includes an input channel a and an input channel B, it may be specified in the test task to simultaneously transmit a stimulus data packet as a stimulus signal to the input channel a and the input channel B, and it may further be specified in the test task to specify the number of data packets and the type of data packets transmitted to the input channel a, for example, sp frame format data packets, cmef frame format data packets, or the like, and the number of data packets and the type of data packets transmitted to the input channel B. Meanwhile, one or more data packets sent to the input channel a or the input channel B may be specified in the test task for performing abnormal configuration, for example, whether abort or not.
Specifically, a standardized configuration template matching the test task may be initially constructed, and one or more configurable items may be defined in the standardized configuration template by means of key-value pair definition, so as to form a personalized test task. For example, one can define in the standardized configuration template: key-value pairs in the form of "channel select, XX". Accordingly, the user may select which input channel or channels in the test device the stimulus packet needs to be sent to by entering in the configurable item "XX". For example, if the user sets "10", it may be specified that the stimulus packet is transmitted only to the input channel a of the test device, if the user sets "01", it may be specified that the stimulus packet is transmitted only to the input channel B of the test device, and if the user sets "11", it may be specified that the stimulus packets are transmitted to both the input channel a and the input channel B of the test device.
Of course, it will be understood by those skilled in the art that the test task may be set and formed in other manners, for example, by checking or inputting the configuration parameters in a test task configuration page. As long as it is ensured that the configurable complex stimulus signals directed to one or more input channels of the test device are set in the form of test tasks.
And S120, analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel.
In this embodiment, by performing parameter analysis on the test task, various pieces of configuration information set by the user for the excitation signal to be input to the test device can be extracted, that is, what number and what form of excitation data packets need to be input to which input channel or channels in the test device.
Specifically, the target input channel refers to an input channel to be used for receiving a stimulus data packet in the test device, and the target data channel may be all or part of the input channel in the test device, which is not limited in this embodiment.
In addition, the number and the type of the excitation data packets sent to each target input channel can be further determined by analyzing the test task, and one or more excitation data packets in a specific form pointing to each target input channel can be correspondingly constructed.
For example, if it is determined that the test task specifies that 2 sp frame type packets are required to be generated for input channel a of the test equipment, and 1 cmef frame type packet is required for input channel B of the test equipment. Further, two stimulus packets, sp [1] and sp [2], corresponding to input channel A, and one cmef [1] stimulus packet corresponding to input channel B may be generated accordingly.
It should be noted that, each input channel of the testing apparatus may independently input different numbers of excitation data packets of different types, and therefore, it is necessary to independently construct an excitation data packet corresponding to each target input channel.
In an optional embodiment of the present invention, parsing the test task, determining target input channels matched with the test device, and constructing excitation data packets corresponding to each target input channel may include:
according to the channel selection parameters in the test task, determining a target input channel in all input channels included in the test equipment; acquiring the data packet sending quantity respectively corresponding to each target input channel according to the data packet quantity parameter in the test task, and acquiring the data packet type respectively corresponding to each target input channel according to the data packet type parameter in the test task; and constructing excitation data packets respectively corresponding to each target input channel according to the data packet sending quantity and the data packet type.
The advantages of such an arrangement are: multiple channel data transmission can be supported, and the transmission mode and the transmission data type can be configured and random.
The channel selection parameter may be a variable constructed in the test task for determining the input channel in the test device. The number of data packets parameter may be a variable constructed in the test task for determining the number of stimulus data packets corresponding to each target input channel of the test device. The number of data packets sent may be the number of excitation data packets sent to each target input channel of the test device, and the number of data packets sent to each target input channel may be the same or different, which is not limited in the embodiment of the present invention.
The data packet type parameter may be a variable constructed in the test task for determining the type of the excitation data packet corresponding to each target input channel of the test device. The type of the data packet may be a type of a stimulus data packet sent to each target input channel of the test device, and the embodiment of the present invention does not limit the type of the data packet of each target input channel. The data packet types corresponding to each target input channel may be one or more, that is, a uniform data packet type may be set for a plurality of excitation data packets pointing to the same target input channel, or matched data packet types may be set for a plurality of excitation data packets pointing to the same target input channel, respectively.
Correspondingly, channel selection parameters, data packet quantity parameters and data packet type parameters can be pre-constructed in the test task, target input channels are determined from all input channels of the test equipment according to the channel selection parameters, the quantity of data packets sent by each target input channel is respectively determined according to the data packet quantity parameters, the type of the data packets sent by each target input channel is respectively determined according to the data packet type parameters, and accordingly excitation data packets respectively matched with each target input channel are constructed according to the data packet sending quantity and the data packet type of each target input channel.
S130, according to the interface protocol of the testing equipment, the testing task and the excitation data packet corresponding to each target input channel, a plurality of interface data fragment messages corresponding to all input interfaces of the testing equipment are formed.
The interface protocol of the test device may refer to a communication mode and a requirement to be followed when information is exchanged with the test device. Generally, a test device defines a combined interface message corresponding to input signals of all input channels, which is received at each time, in an interface protocol, and decomposes the received combined interface message, so as to further split and obtain input signals corresponding to each input channel.
Meanwhile, it is considered that the stimulus data packet is generally sent to the testing device in the form of data fragments, that is, each target input channel of the testing device can only receive one data packet fragment of one stimulus data packet at each time. Correspondingly, the combined interface message that the test equipment can receive at each moment is an interface data fragmentation message corresponding to all the input interfaces.
Correspondingly, after the excitation data packets corresponding to each target input channel are generated, interface data fragmentation messages which can be identified by the test equipment and correspond to different moments are formed by combining the interface protocol of the test equipment.
Specifically, the excitation data packet corresponding to each target input channel of the test device may be configured according to parameters such as a channel selection parameter, a data packet number parameter, and a data packet type parameter of the test task, and then, a plurality of interface data fragmentation messages respectively corresponding to all input interfaces of the test device may be formed according to a communication mode specified by a test device interface protocol.
It should be emphasized again that in the technical solution of the embodiment of the present invention, the excitation signal generator directly generates the interface data slicing message that can be recognized by the test device, and further, the driver does not need to perform complex logic processing, and only by a direct driving manner, the complex excitation signal can be simply and conveniently input into the test device.
And S140, respectively sending each interface data fragment message to the test equipment at different driving time.
The driving time may be a time when each interface data fragment packet is driven to the test device.
After the interface data fragment messages are formed, each interface data fragment message is respectively driven to the test equipment at different driving moments so as to simulate the form of transmitting each excitation data packet in a fragment mode and respectively transmit the excitation data packet to the test equipment.
In an optional embodiment of the present invention, respectively sending each interface data fragment message to the test device at different driving times may include: and respectively sending each interface data fragment message to the test equipment through the driver at different driving time.
The interface data slicing messages are sent to the driver after being formed, and each interface data slicing message is respectively driven to the test equipment by the driver at different driving time.
The advantages of such an arrangement are: the sending control device of the excitation signal is used for carrying out data processing, and the interface data slicing message obtained by processing is sent to the corresponding target input channel of the test equipment through the driver, so that the driving work of the driver can be simplified.
The embodiment of the invention obtains the test task matched with the test equipment; analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel; forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel; the method has the advantages that each interface data fragment message is respectively sent to the test equipment at different driving moments, the problems that the driving work is complex and easy to be wrong due to the fact that the existing complex excitation signals are generated by the driver are solved, a new mode that the multi-channel configurable complex excitation signals are generated by the excitation generator is provided, the working complexity of the driver is greatly simplified, the construction difficulty of the complex excitation signals is simplified, and the construction flexibility and the universality of the complex excitation signals are improved.
In an optional embodiment of the present invention, after sending each interface data fragment packet to the test device at different driving times, the method may further include:
sending excitation data packets corresponding to each target input channel to a simulation reference model matched with the test equipment; acquiring a simulation processing result of the reference model on each received excitation data packet and an actual processing result of the test equipment on each received interface data fragment message; and verifying the effectiveness of the test equipment according to the consistency relationship between the simulation processing result and the actual processing result.
Wherein, the simulation reference model can be a software simulation model of the test equipment. The simulation processing result may be a theoretical test result when the simulation reference model corresponding to the test device performs the test task in an ideal state. The actual processing result may refer to an actual test result when the test device performs the test task under an actual condition.
Correspondingly, in order to verify the effectiveness of the test equipment, the obtained excitation data packet corresponding to each target input channel of the test equipment is sent to a software simulation model (also called a simulation reference model) of the test equipment, and a simulation processing result and an actual processing result of the test equipment on the received interface data fragment message are obtained. The consistency relationship between the simulation processing result and the actual processing result is compared, and the effectiveness of the test equipment can be verified.
Example two
Fig. 2 is a flowchart of an excitation signal sending control method in a second embodiment of the present invention, and in this embodiment, based on the above embodiments, operations of forming a plurality of interface data fragmentation messages corresponding to all input interfaces of a test device according to an interface protocol of the test device, a test task, and an excitation data packet corresponding to each target input channel are further detailed, and the technical solution in this embodiment may be combined with various alternatives in one or more of the above embodiments. As shown in fig. 2, the transmission control method of the excitation signal may include the steps of:
and S210, acquiring a test task matched with the test equipment.
S220, analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to the target input channels respectively.
And S230, forming a fragment message template matched with the testing equipment according to the interface protocol of the testing equipment.
Wherein, the fragment message template comprises: and the areas to be filled respectively correspond to the load attributes and the input description attributes, and each area to be filled comprises an independent sub-area to be filled respectively corresponding to each input channel of the test equipment.
The fragmentation message template may be a template for generating an interface data fragmentation message, and is used to describe a standardized message format of the interface data fragmentation message conforming to the interface protocol of the test equipment. The fragmentation message template may change with the change of the test device or the change of the interface protocol of the test device.
Load attributes may refer to the load performance of each input channel of the test equipment, which is typically associated with the specific content of the stimulus data slice received by each input channel at each time.
Each input description attribute is specifically used for describing a specific input state of the excitation data packet corresponding to the excitation data fragment input to each input channel.
Wherein the input description attribute may include at least one of: whether the excitation data fragment is the first fragment in the excitation data packet, whether the excitation data fragment is the last fragment in the excitation data packet, whether the excitation data packet is discarded, whether the excitation data packet needs to be relayed, whether the excitation data packet needs to be analyzed and processed, and the like. Optionally, the attribute value of the input description attribute may be set randomly or according to a data packet transmission parameter read from the test task.
It can be understood that the message structure form of each interface data fragment message sent to the test device by the excitation signal generator should be the same as the fixed content in the fragment message template, and the dynamic message content that dynamically changes with the difference of the excitation data fragments in the interface data fragment message needs to be correspondingly filled in the matching filling area in the fragment message template.
As described above, each interface data fragment message that can be identified by one test device needs to include the combined content corresponding to the input signals of all the input channels, and therefore, each region to be filled includes an independent sub-region to be filled corresponding to each input channel of the test device, and the load attribute or the input description attribute corresponding to each input channel is filled in each independent sub-region to be filled.
In a specific example, each independent sub-region to be filled in the fragment message template may be initialized to be in a null state, which is used to indicate a state where each input channel has no signal input. Furthermore, the matching assignment processing can be adaptively performed to the independent sub-areas to be filled corresponding to the target input channels respectively according to the excitation data fragments input to the target input channels respectively at different times.
And S240, carrying out fragmentation processing on the excitation data packet of each target input channel to form a plurality of excitation data fragments respectively corresponding to different times.
The excitation data fragments may be fragments obtained by decomposing the excitation data packet corresponding to each target input channel, and the number of the excitation data fragments may be determined according to an interface protocol of the test device.
And executing the slicing operation on the excitation data packet of each target input channel to form a plurality of excitation data slices corresponding to different moments.
In a specific example, if the target input channel a corresponds to the excitation data packet 1 and the target input channel B corresponds to the excitation data packet 2, the excitation data slice 1-1, the excitation data slice 1-2, the excitation data slice 2-1, and the excitation data slice 2-2 may be obtained by performing 2-slice processing on the excitation data packet 1 and the excitation data packet 2.
Furthermore, it is necessary to simultaneously transmit the excitation data segment 1-1 and the excitation data segment 2-1 to the testing device at one time, and simultaneously transmit the excitation data segment 2-1 and the excitation data segment 2-2 to the testing device at another time.
Through the arrangement, at each time, which excitation data fragments respectively corresponding to which target input channels need to be contained in each interface data fragment message can be determined.
And S250, filling the fragmentation message template according to the excitation data fragmentation corresponding to each target input channel and the data packet sending parameters in the test task to form a plurality of interface data fragmentation messages corresponding to different moments.
And correspondingly filling each fragment message template according to the obtained multiple excitation data fragments corresponding to each target input channel and by combining data packet transmission parameters in the test task, thereby generating multiple interface data fragment messages which can be transmitted at different moments.
In this embodiment, by analyzing the test task, the data packet transmission parameters set for the test device may be further obtained. The data packet transmission parameter is matched with the input description parameter in the fragment message template, and is used to define the specific input state of the excitation data packet corresponding to the excitation data fragment pair input to each input channel, for example, it may be defined in the data packet transmission parameter that a certain data packet pointing to a certain target input channel is discarded, whether a certain data fragment of a certain target input channel is the first or last fragment in the data packet, or whether a certain data packet of a certain target input channel is relayed or parsed, and the like. By reading the data packet transmission parameters in the test task, the setting of the matched input description parameters in the segmented message template can be realized.
In a specific example, if an excitation data fragment a in an excitation data packet a is set as a first fragment in a data packet transmission parameter, an attribute value for identifying and confirming that the excitation data fragment a is the first fragment needs to be filled in an interface data fragment message corresponding to the excitation data fragment a for an input description attribute of "whether the excitation data fragment corresponding to the initial excitation data fragment is the first fragment in the excitation data packet";
in another specific example, if it is set in the packet transmission parameter that the excitation packet B needs to be discarded, an attribute value for identifying the discarded excitation packet needs to be filled in an interface data slice message corresponding to one or more excitation data slices of the excitation packet B for an input description attribute of "whether to discard the excitation packet" corresponding to the one or more excitation data slices.
In an optional embodiment of the present invention, the filling processing is performed on the fragmentation message template according to each excitation data fragmentation corresponding to each target input channel and a data packet transmission parameter in the test task, so as to form a plurality of interface data fragmentation messages corresponding to different times, which may include:
counting the number of fragments respectively corresponding to each target input channel, acquiring the maximum number of fragments, and forming a plurality of fragment message templates matched with the maximum number of fragments; correspondingly filling the sub-regions to be filled, which are matched with the load attributes, in each fragment message template according to each excitation data fragment of each target input channel at different moments; determining attribute values of input description attributes corresponding to the excitation data fragments of the target input channels according to data packet sending parameters in the test task; and correspondingly filling the attribute value of each input description attribute into the sub-area to be filled, matched with the input description attribute, in each fragment message template to form each interface data fragment message respectively corresponding to different moments.
The fragmentation number may be a value of the fragmentation number of the excitation packet corresponding to each target input channel after the fragmentation operation is performed. The maximum number of slices may be a maximum number of slices per target input channel obtained.
Correspondingly, the fragment number of the excitation data packet corresponding to each target input channel is counted, the maximum number value in each fragment number is obtained and determined as the maximum fragment number, and therefore a plurality of fragment message templates with the same maximum fragment number value can be generated. And filling the sub-regions to be filled, which are matched with the load attributes in each fragment message template, according to the number of the excitation data fragments corresponding to each target input channel at different moments.
Further, according to the data packet sending parameters in the test task, determining the attribute values of the input description attributes corresponding to the excitation data fragments of the target input channels respectively, and filling the attribute values into the sub-regions to be filled, which are matched with the input description attributes, in the fragment message templates. Finally, a plurality of interface data fragment messages respectively corresponding to different moments are formed.
In each fragment message template, the attribute values of each input description attribute corresponding to each excitation data fragment are filled, and this operation may also be understood as that the transmission mode and the transmission data type are configurable. If the attribute values of the input description attributes are not filled, the attribute values may be randomly selected to be filled, for example, if whether to discard an excitation packet is not set in the packet parameters of the test task, when the interface data fragment packet is filled for each excitation data fragment in the excitation packet X corresponding to the test task, the attribute values corresponding to "discard" or "not discard" may be randomly selected to be filled for the input description attribute of "whether to discard the excitation packet". This operation is understood to mean that the transmission mode and the type of data to be transmitted may be random.
And S260, respectively sending each interface data fragment message to the test equipment at different driving time.
According to the technical scheme of the embodiment, the test task matched with the test equipment is obtained; analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel; forming a fragment message template matched with the test equipment according to an interface protocol of the test equipment; the excitation data packet of each target input channel is subjected to fragmentation processing to form a plurality of excitation data fragments respectively corresponding to different moments; filling a fragmentation message template according to each excitation data fragmentation corresponding to each target input channel and data packet sending parameters in the test task to form a plurality of interface data fragmentation messages corresponding to different moments respectively; and respectively sending each interface data fragment message to the test equipment at different driving time. The method solves the problems of complex driving work and easy error caused by the fact that the existing complex excitation signals are generated by a driver, provides a new mode of generating multi-channel configurable complex excitation signals by an excitation generator, greatly simplifies the working complexity of the driver, simplifies the construction difficulty of the complex excitation signals, and improves the construction flexibility and the universality of the complex excitation signals.
Application specific scenarios
In order to make those skilled in the art better understand the transmission control method of the excitation signal of the present embodiment, a specific example is used for the following description.
In this example, the test equipment includes two input channels, which are denoted as channel a and channel b, respectively, and each input channel can receive two types of data packets, that is, an sp frame type data packet and a cmef frame type data packet. The test task is to send two excitation data packets to the two input channels of the test device, respectively, where two excitation data packets of sp frame type need to be sent to a channel a of the test device, two excitation data packets of cmef frame type need to be sent to a channel b of the test device, and an interface data fragmentation message template is formed according to an interface protocol matched with the test device as follows:
Figure BDA0003381064110000161
wherein, the bit positions ("2 bit", "2 × 128 bit" and "2 × 4 bit") in the interface data fragmentation message template are the areas to be filled.
In the application scenario, an "asm _ dsm _ sp _ cmef _ vld" field is used to describe an input channel to which an excitation data fragment is sent at a time, wherein, by filling 0 or 1 in a first bit position corresponding to the field, whether the time sends an excitation data fragment to a channel a can be specified; by filling 0 or 1 in the second bit position corresponding to this field, it can be specified whether or not an excitation data fragment is sent into channel b at this time.
The "asm _ dsm _ sp _ cmef" field is used to describe the packet type of the excitation packet corresponding to the excitation data slice input by each input channel at a time. Since the test equipment can only receive two types of packets, 1bit can be used to indicate the packet type. By filling 0 or 1 in the first bit position corresponding to the field, it can be specified whether the excitation data packet corresponding to the excitation data fragment sent to the channel a is an sp frame type data packet or a cmef frame type data packet, and by filling 0 or 1 in the second bit position corresponding to the field, it can be specified whether the excitation data packet corresponding to the excitation data fragment sent to the channel b is an sp frame type data packet or an ef cmef frame type data packet.
The "asm _ dsm _ sp _ cmef _ payload" field is used to describe the specific data content in the excitation data slice input by each input channel at a time. The first group of 128bit positions corresponding to the field is used for filling specific fragment content included in one excitation data fragment input into the channel a at the moment, and the second group of 128bit positions corresponding to the field is used for filling specific fragment content included in one excitation data fragment input into the channel b at the moment.
The "asm _ dsm _ sp _ cmef _ sof" field is used to describe whether the excitation data slice input by each input channel is the first slice in the excitation data packet at a time. Filling 0 or 1 in the first bit position corresponding to the field, so that the excitation data fragment sent to the channel a at the moment can be appointed not to be the first fragment in the excitation data packet, or to be the first fragment in the excitation data packet; by filling 0 or 1 in the second bit position corresponding to the field, it can be specified that the excitation data fragment sent to the channel b at the moment is not the first fragment in the excitation data packet, or is the first fragment in the excitation data packet.
The "asm _ dsm _ sp _ cmef _ eof" field is used to describe whether the excitation data slice input by each input channel at a time is the last bit slice in the excitation packet. Filling 0 or 1 in the first bit position corresponding to the field, so that the excitation data fragment sent to the channel a at the moment can be appointed not to be the last fragment in the excitation data packet, or to be the last fragment in the excitation data packet; by filling 0 or 1 in the second bit position corresponding to the field, it can be specified that the excitation data fragment sent to the channel b at the moment is not the last fragment in the excitation data packet, or is the last fragment in the excitation data packet.
The "asm _ dsm _ sp _ cmef _ abort" field is used to describe whether the excitation data packet corresponding to the excitation data slice input by each input channel is discarded at a time. And filling 0 or 1 in the second bit position corresponding to the field can specify that the excitation data packet corresponding to the excitation data fragment sent to the channel b at the moment is discarded or not discarded.
The "asm _ dsm _ sp _ cmef _ unused _ bytes" field is used to describe the specific unused byte content in the excitation data slice input by each input channel at a time. The first group of 4-bit positions corresponding to the field is used for filling the specifically unused byte content in one excitation data fragment input into the channel a at the moment, and the second group of 4-bit positions corresponding to the field is used for filling the specifically unused byte content in one excitation data fragment input into the channel b at the moment.
The "asm _ dsm _ sp _ cmef _ relay" field is used to describe whether the excitation data packet corresponding to the excitation data segment input by each input channel needs to be relayed at a time. By filling 0 or 1 in the first bit position corresponding to the field, it can be specified that the excitation data packet corresponding to the excitation data fragment sent to the channel a at the moment needs to be relayed or does not need to be relayed, and by filling 0 or 1 in the second bit position corresponding to the field, it can be specified that the excitation data packet corresponding to the excitation data fragment sent to the channel b at the moment needs to be relayed or does not need to be relayed.
The "asm _ dsm _ sp _ cmef _ extract" field is used to describe whether the excitation data packet corresponding to the excitation data slice input by each input channel needs to be parsed at a time. By filling 0 or 1 in the first bit position corresponding to the field, it can be specified that the excitation data packet corresponding to the excitation data fragment sent to the channel a at the moment needs analysis processing or does not need analysis processing, and by filling 0 or 1 in the second bit position corresponding to the field, it can be specified that the excitation data packet corresponding to the excitation data fragment sent to the channel b at the moment needs analysis processing or does not need analysis processing.
In the application scenario, it is assumed that each excitation data packet is divided into two excitation data slices, and therefore, for the test task, four excitation data slices corresponding to each input channel need to be generated, and further. Four interface data fragment messages corresponding to the four moments respectively need to be generated so as to simulate and obtain an excitation signal matched with the test task.
The specific manner of filling the interface data fragmentation message template may be specifically described by taking an interface data fragmentation message as an example.
For the interface data fragment message, the "2 bit" position corresponding to the "asm _ dsm _ sp _ cmef _ vld" field in the template needs to be filled with "11" respectively, which is used to specify that an excitation data fragment is sent to both the channel a and the channel b of the test device at the sending time of the interface data fragment message.
And filling the position of the 2bit corresponding to the field of the asm _ dsm _ sp _ cmef in the template with 10 respectively, wherein the position is used for specifying that the data packet type of the excitation data packet corresponding to the excitation data fragment input to the channel a is an sp frame type data packet and the data packet type of the excitation data packet corresponding to the excitation data fragment input to the channel b is a cmef frame type data packet at the sending time.
And filling the position of 2 x 128bit corresponding to the field of the 'asm _ dsm _ sp _ cmef _ payload' in the template. The first group of 128bit positions is used for filling specific fragment contents included in the excitation data fragment input to the channel a at the sending time, and the second group of 128bit positions is used for filling specific fragment contents included in the excitation data fragment input to the channel b at the sending time.
Respectively filling 10 in the position of 2bit corresponding to the field of 'asm _ dsm _ sp _ cmef _ sof' in the template by reading the sending parameters of the data packet in the test task, wherein the position is used for specifying the excitation data fragment input to the channel a at the sending moment and is the first data fragment in the sp frame type data packet; and, the excitation data slice input to channel b is the non-first data slice in the cmef frame type packet.
Respectively filling '01' in the position of '2 bit' corresponding to the field 'asm _ dsm _ sp _ cmef _ eof' in the template by reading the data packet sending parameters in the test task, wherein the position is used for specifying the excitation data fragment input to the channel a at the sending moment and is a non-last excitation data fragment in the sp frame type data packet; and the excitation data packet input to the channel b is the last excitation data slice in the cmef frame type data packet.
In addition, by reading the packet transmission parameters in the test task, the "2 bit" position corresponding to the "asm _ dsm _ sp _ cmef _ abort" field in the template can be filled with "00" respectively, which is used to specify that the excitation packet corresponding to the excitation data fragment input to the channel a at the transmission time is not to be discarded, and the excitation packet corresponding to the excitation data fragment input to the channel b at the transmission time is not to be discarded.
By reading the data packet sending parameters in the test task, the "2 x 4 bit" position corresponding to the "asm _ dsm _ sp _ cmef _ unused _ bytes" field in the template can be filled, wherein the first group of 4bit positions is used for filling the specifically unused byte content in one excitation data fragment input to the channel a at the sending time, and the second group of 4bit positions is used for filling the specifically unused byte content in one excitation data fragment input to the channel b at the sending time.
By reading the data packet sending parameters in the test task, the positions of the 2 bits corresponding to the fields of the asm _ dsm _ sp _ cmef _ relay in the template can be respectively filled with 01, which is used for specifying that the excitation data packet corresponding to the excitation data fragment input by the channel a does not need to be relayed and the excitation data packet corresponding to the excitation data fragment input by the channel b needs to be relayed at the sending time.
By reading the data packet sending parameters in the test task, the positions of the '2 bit' corresponding to the 'asm _ dsm _ sp _ cmef _ extract' field in the template can be respectively filled with '01', so as to specify that the excitation data packet corresponding to the excitation data fragment input by the channel a does not need to be analyzed and processed at the sending time, and the excitation data packet corresponding to the excitation data fragment input by the channel b needs to be analyzed and processed.
After the above-mentioned filling process for interface data fragment message template is completed, an interface data fragment message can be formed. Correspondingly, aiming at the interface data fragmentation message template, according to the excitation data fragmentation corresponding to each target input channel and the data packet sending parameters in the test task obtained by analysis, the fragmentation message template is filled, and a plurality of interface data fragmentation messages corresponding to different moments are formed.
In the application scenario, the finally obtained interface data fragmentation messages at four moments and two different types of excitation data messages respectively pointing to the channel a and the channel b can be jointly sent to the driver, the driver sends the interface data fragmentation messages to the test equipment at four driving moments respectively, and simultaneously sends the excitation data messages to the simulation reference model to verify the effectiveness of the test equipment.
EXAMPLE III
Fig. 3 is a schematic structural diagram of an excitation signal transmission control apparatus according to a third embodiment of the present invention, which is capable of executing the excitation signal transmission control method according to the above embodiments. Referring to fig. 3, the apparatus includes: a test task obtaining module 310, an excitation data packet constructing module 320, an interface data fragment message forming module 330, and an interface data fragment message sending module 340.
A test task obtaining module 310, which may be used to obtain a test task matching the test equipment;
the excitation data packet construction module 320 may be configured to analyze the test task, determine a target input channel matched with the test device, and construct an excitation data packet corresponding to each target input channel;
the interface data fragmentation message forming module 330 may be configured to form a plurality of interface data fragmentation messages for all input interfaces of the test device according to an interface protocol of the test device, a test task, and an excitation data packet corresponding to each target input channel;
the interface data fragment message sending module 340 may be configured to send each interface data fragment message to the test device at different driving times.
According to the technical scheme of the embodiment, the test task matched with the test equipment is obtained; analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel; forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel; and respectively sending each interface data fragment message to the test equipment at different driving time. The method solves the problems of complex driving work and easy error caused by the fact that the existing complex excitation signals are generated by a driver, provides a new mode of generating multi-channel configurable complex excitation signals by an excitation generator, greatly simplifies the working complexity of the driver, simplifies the construction difficulty of the complex excitation signals, and improves the construction flexibility and the universality of the complex excitation signals.
In the above apparatus, optionally, the incentive data packet constructing module 320 may include:
the target input channel determining unit may be specifically configured to determine a target input channel among all input channels included in the test device according to a channel selection parameter in the test task;
the data packet obtaining unit may be specifically configured to obtain, according to a data packet quantity parameter in the test task, a data packet sending quantity corresponding to each target input channel, and obtain, according to a data packet type parameter in the test task, a data packet type corresponding to each target input channel;
the excitation data packet constructing subunit may be specifically configured to construct excitation data packets corresponding to each target input channel according to the data packet sending number and the data packet type.
In the foregoing apparatus, optionally, the interface data fragmentation message forming module 330 may include:
the fragment message template forming unit may be specifically configured to form, according to an interface protocol of the test device, a fragment message template matched with the test device, where the fragment message template includes: the test equipment comprises to-be-filled areas corresponding to load attributes and input description attributes respectively, wherein each to-be-filled area comprises independent to-be-filled sub-areas corresponding to input channels of the test equipment respectively;
the excitation data fragment forming unit may be specifically configured to perform fragment processing on the excitation data packet of each target input channel to form a plurality of excitation data fragments respectively corresponding to different times;
the interface data fragmentation message forming unit may be specifically configured to perform filling processing on the fragmentation message templates according to each excitation data fragmentation corresponding to each target input channel and a data packet transmission parameter in the test task, so as to form a plurality of interface data fragmentation messages corresponding to different times.
In the above apparatus, optionally, the interface data fragmentation message forming unit may include:
the fragment message template forming subunit may be specifically configured to count the number of fragments respectively corresponding to each target input channel, obtain the maximum number of fragments, and form a plurality of fragment message templates matching the maximum number of fragments;
the sub-region filling unit to be filled may be specifically configured to correspondingly fill the sub-regions to be filled, which are matched with the load attribute, in each of the fragmented packet templates according to each excitation data fragment of each target input channel at different time;
the attribute value determining unit may be specifically configured to determine, according to the data packet sending parameter in the test task, an attribute value of each input description attribute corresponding to each excitation data segment of each target input channel, respectively;
the interface data fragmentation message forming subunit may be specifically configured to correspondingly fill the attribute value of each input description attribute into a sub-region to be filled, in each fragmentation message template, that is matched with the input description attribute, so as to form each interface data fragmentation message corresponding to different times.
In the above apparatus, optionally, the input description attribute includes at least one of:
whether the excitation data fragment is the first fragment in the excitation data packet, whether the excitation data fragment is the last fragment in the excitation data packet, whether the excitation data packet is discarded, whether the excitation data packet needs to be relayed and whether the excitation data packet needs to be analyzed.
In the foregoing apparatus, optionally, the interface data fragment packet sending module 340 may be specifically configured to:
and respectively sending each interface data fragment message to the test equipment through the driver at different driving time.
Optionally, in the apparatus described above, the apparatus further includes a test device validity verification module, configured to send each interface data fragment packet to the test device at different driving times, and then send excitation data packets corresponding to each target input channel to the simulation reference model matched with the test device; acquiring a simulation processing result of the reference model on each received excitation data packet and an actual processing result of the test equipment on each received interface data fragment message; and verifying the effectiveness of the test equipment according to the consistency relationship between the simulation processing result and the actual processing result.
The excitation signal sending control device provided by the embodiment of the invention can execute the excitation signal sending control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 4 is a schematic structural diagram of an excitation signal generator according to a fourth embodiment of the present invention, as shown in fig. 4, the excitation signal generator includes a memory 40, a processor 41, an input device 42, and an output device 43; the number of the processors 41 in the excitation signal generator may be one or more, and one processor 41 is taken as an example in fig. 4; the memory 40, the processor 41, the input device 42 and the output device 43 in the excitation signal generator may be connected by a bus or other means, which is exemplified in fig. 4.
The memory 40 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the excitation signal transmission control method in the embodiment of the present invention (for example, the test task obtaining module 310, the excitation data packet constructing module 320, the interface data fragment message forming module 330, and the interface data fragment message transmitting module 340 in the excitation signal transmission control apparatus). The processor 41 executes various functional applications of the excitation signal generator and data processing by executing software programs, instructions and modules stored in the memory 40, that is, implements the above-described excitation signal transmission control method, which includes:
acquiring a test task matched with test equipment;
analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel;
forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel;
and respectively sending each interface data fragment message to the test equipment at different driving time.
The memory 40 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 40 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 40 may further include memory located remotely from processor 41, which may be connected to the excitation signal generator through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 42 is operable to receive input numeric or character information and to generate key signal inputs associated with user settings and function controls of the activation signal generator. The output device 43 may include a display device such as a display screen.
EXAMPLE five
An embodiment of the present invention further provides a storage medium of computer-executable instructions, on which a computer program is stored, the program being used when executed by a processor to execute a transmission control method of an excitation signal, the method including:
acquiring a test task matched with test equipment;
analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel;
forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel;
and respectively sending each interface data fragment message to the test equipment at different driving time.
Of course, the storage medium of the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the excitation signal transmission control method provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the device for controlling sending of an excitation signal, the included units and modules are merely divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A transmission control method of an excitation signal, comprising:
acquiring a test task matched with test equipment;
analyzing the test task, determining target input channels matched with the test equipment, and constructing excitation data packets corresponding to each target input channel;
forming a plurality of interface data fragment messages corresponding to all input interfaces of the test equipment according to an interface protocol of the test equipment, a test task and an excitation data packet corresponding to each target input channel;
and respectively sending each interface data fragment message to the test equipment at different driving time.
2. The method of claim 1, wherein parsing the test task, determining target input channels that match the test equipment, and constructing excitation data packets that respectively correspond to each target input channel comprises:
according to the channel selection parameters in the test task, determining a target input channel in all input channels included in the test equipment;
acquiring the data packet sending quantity respectively corresponding to each target input channel according to the data packet quantity parameter in the test task, and acquiring the data packet type respectively corresponding to each target input channel according to the data packet type parameter in the test task;
and constructing excitation data packets respectively corresponding to each target input channel according to the data packet sending quantity and the data packet type.
3. The method of claim 1, wherein forming a plurality of interface data fragmentation messages corresponding to all input interfaces of the test device according to the interface protocol of the test device, the test task, and the stimulus data packet corresponding to each target input channel, respectively, comprises:
according to an interface protocol of the test equipment, a fragment message template matched with the test equipment is formed, wherein the fragment message template comprises: the test equipment comprises to-be-filled areas corresponding to load attributes and input description attributes respectively, wherein each to-be-filled area comprises independent to-be-filled sub-areas corresponding to input channels of the test equipment respectively;
the excitation data packet of each target input channel is subjected to fragmentation processing to form a plurality of excitation data fragments respectively corresponding to different moments;
and filling the fragment message template according to the excitation data fragments respectively corresponding to each target input channel and the data packet sending parameters in the test task to form a plurality of interface data fragment messages respectively corresponding to different moments.
4. The method of claim 3, wherein the filling the fragmented packet template according to the excitation data fragments respectively corresponding to each target input channel and the data packet transmission parameters in the test task to form a plurality of interface data fragmented packets respectively corresponding to different time instants, comprises:
counting the number of fragments respectively corresponding to each target input channel, acquiring the maximum number of fragments, and forming a plurality of fragment message templates matched with the maximum number of fragments;
correspondingly filling the sub-regions to be filled, which are matched with the load attributes, in each fragment message template according to each excitation data fragment of each target input channel at different moments;
determining attribute values of input description attributes corresponding to the excitation data fragments of the target input channels according to data packet sending parameters in the test task;
and correspondingly filling the attribute value of each input description attribute into the sub-area to be filled, matched with the input description attribute, in each fragment message template to form each interface data fragment message respectively corresponding to different moments.
5. The method of claim 4, wherein the input description attribute comprises at least one of:
whether the excitation data fragment is the first fragment in the excitation data packet, whether the excitation data fragment is the last fragment in the excitation data packet, whether the excitation data packet is discarded, whether the excitation data packet needs to be relayed and whether the excitation data packet needs to be analyzed.
6. The method according to any one of claims 1 to 5, wherein sending each interface data fragment message to the test device at different driving time respectively comprises:
and respectively sending each interface data fragment message to the test equipment through the driver at different driving time.
7. The method according to any one of claims 1 to 5, wherein after sending each interface data fragmentation message to the test device at different driving time, further comprising:
sending excitation data packets corresponding to each target input channel to a simulation reference model matched with the test equipment;
acquiring a simulation processing result of the reference model on each received excitation data packet and an actual processing result of the test equipment on each received interface data fragment message;
and verifying the effectiveness of the test equipment according to the consistency relationship between the simulation processing result and the actual processing result.
8. An excitation signal transmission control apparatus, comprising:
the test task acquisition module is used for acquiring a test task matched with the test equipment;
the excitation data packet construction module is used for analyzing the test task, determining target input channels matched with the test equipment and constructing excitation data packets respectively corresponding to each target input channel;
the interface data fragment message forming module is used for forming a plurality of interface data fragment messages aiming at all input interfaces of the testing equipment according to an interface protocol and a testing task of the testing equipment and excitation data packets respectively corresponding to each target input channel;
and the interface data fragment message sending module is used for sending each interface data fragment message to the test equipment at different driving moments.
9. An excitation signal generator comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the excitation signal transmission control method according to any one of claims 1 to 7 when executing the computer program.
10. A storage medium of computer-executable instructions, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the excitation signal transmission control method according to any one of claims 1 to 7.
CN202111433706.3A 2021-11-29 2021-11-29 Excitation signal transmission control method, excitation signal transmission control device, excitation signal generator, and medium Pending CN114090364A (en)

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