CN1909499B - Multi-path data collecting device and method - Google Patents
Multi-path data collecting device and method Download PDFInfo
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- CN1909499B CN1909499B CN2006100370767A CN200610037076A CN1909499B CN 1909499 B CN1909499 B CN 1909499B CN 2006100370767 A CN2006100370767 A CN 2006100370767A CN 200610037076 A CN200610037076 A CN 200610037076A CN 1909499 B CN1909499 B CN 1909499B
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Abstract
The invention relates to a multi-path data collector and a relative method, wherein said device comprises: at least two memory units for storing collected data; a sending unit for sending collected data; and a collector for synchronously collecting data from each memory unit, and sending the collected data to the sender. The invention can simplify the data collector reduce the device resource, while the multi-path data collection has no time delay. And it supports the comparison and analysis of collected data and simulated data, to improve the test efficiency.
Description
Technical field
The present invention relates to data communication field, relate to a kind of multi-path data collecting device and method specifically.
Background technology
Test has great significance in the process of product development especially communication technology product development, and it is effective assurance of end product quality.In the process of test, the accuracy of test is particularly important, and the process of test is accurate more, can accurately and truly reflect the state and the performance of test product more, can be more exactly the state and the performance of test product be judged soundly.
In the test of wireless chip, in order to test the performance of wireless chip, the method for testing of often using that the data that wireless chip is sent are gathered and itself and emulated data being compared.In the test of the wireless chip that the mode with double antenna is sent data, adopted testing apparatus as shown in Figure 1.
In test process, tested chip sends the double antenna data by diversity mode; The device that is positioned at receiving terminal is a test receiver, is responsible for receiving by dual-antenna diversity data A1 and A2 that tested chip sent, and corresponding with it synchronizing signal A1_sync and A2_sync, and the signal that is received is carried out emulation testing handle.
For received diversity data A1 and A2, this device adopts two cover difference independently buffer memory and data acquisition process, then the two paths of data of being gathered is sent to emulation module respectively and compares, and then draw test result.
When this device receives one tunnel diversity data A1, it is stored among the buffer memory RAM, simultaneously, the controller of being responsible for control collector image data from RAM has also received the synchronizing signal A1_sync corresponding with these A1 data.The controller reference sync signal also carries out data acquisition to the diversity data among the RAM according to predefined form according to test needs control collector, is sent out module then through the data after gathering and sends to emulation module and compare.
When this device received one tunnel diversity data A2, this receiving system taked above-mentioned same step that diversity data A2 is carried out buffer memory, collection and transmission processing.
After emulation module received the data that collect from two-way diversity data A1 and A2, the two-way diversity data of the data that will gather and emulation were compared respectively, thereby draw the test result of this tested chip performance.
The test process that sends the wireless chip of data in the mode of double antenna has been described above, but owing to the diversity data that send respectively by double antenna, data arrival receiving terminal through double antenna after the propagation in space has delay inequality, so this technology exists following shortcoming again:
1. the test receiving system need carry out independently data acquisition process respectively to two-way diversity data, needs independently two cover acquisition control devices etc., takies more device resource;
2. through the two paths of data after gathering delay inequality is arranged, need respectively to compare respectively, influenced testing efficiency with the two-way emulated data of emulation module.
Summary of the invention
The technical problem that the present invention solves is to propose a kind of multi-path data collecting device and method, to realize multichannel data with delay inequality from memory cell inter-sync ground, gather to no delay inequality.
For addressing the above problem, the present invention proposes following technical scheme, wherein a kind of multi-path data collecting device comprises:
At least two memory cell are used for storing respectively each road data to be collected;
Transmitting element is used to send the data of being gathered;
Reading unit links to each other respectively with described each memory cell, is used for reading data to be collected by rule from memory cell;
Control unit links to each other with described reading unit, is used for controlling reading unit and synchronously reads data to be collected from described each memory cell, and the described data that read are sent to described transmitting element, and described control unit comprises:
The store status indicating member is used to indicate the state that can read of each data in storage unit;
Allow to read indicating member, be used for indicating whether that according to the data state of can read in described each memory cell allowing that described each memory cell is carried out data in synchronization reads; If described store status indicating member indicates the state of can read of each data in storage unit to be when can read, describedly allow to read indicating member for allowing reading state;
The reading command unit allows to read indicating member and links to each other with described, be used for described allow to read indicating member for the situation that allows reading state under, send reading command respectively to each reading unit.
Wherein, described control unit also comprises:
Trigger element is used for allowing to read indicating member and triggering described reading command cell operation under for the condition that allows reading state described.
Wherein, above-mentioned reading command unit comprises again:
The address lookup unit is used to inquire about the positional information of data to be read in memory cell;
Read indicating member, be used to indicate the assigned address reading of data of described reading unit from the memory cell of correspondence.
Wherein, above-mentioned data to be collected are two-way dual-antenna diversity data, have two memory cell to be used to store two-way diversity data respectively in the described device.
Correspondingly, technical scheme of the present invention also comprises a kind of multi-channel data acquisition method, comprising:
A, with the storage to be collected of two-way at least that received in the memory cell corresponding with each circuit-switched data;
A1, whether all allow to carry out data read according to described each memory cell and judge whether that allowing that described each memory cell is carried out data in synchronization reads, if the judgment is Yes, execution in step b, otherwise, wait for a default time, re-execute step a1;
B, from described each memory cell, synchronously read out each circuit-switched data;
C, described each circuit-switched data that reads is sent to the subsequent treatment unit.
Wherein, the described foundation of judging whether memory cell allows to carry out data read is: whether this memory cell stores data.
Wherein, step b comprises step:
Each circuit-switched data that b1, inquiry need be read synchronously is at the stored position information of each memory cell;
B2, according to the stored position information of being inquired about, from each memory cell, synchronously read each corresponding circuit-switched data.
Wherein, above-described data to be collected are two-way dual-antenna diversity data, have two memory cell to be used to store two-way diversity data respectively in the described device.
Compared with prior art, the present invention has the following advantages:
1. the present invention only adopts a sets of data acquisition controlling unit to control the gatherer process of multichannel data simultaneously, has simplified the implementation procedure of data acquisition, has also saved device resource;
2. the present invention can access does not have multi pass acquisition data time delay, alignment, in the application of the performance test of double antenna wireless chip, has simplified the compare of analysis of image data and emulated data, has improved testing efficiency.
Description of drawings
Fig. 1 is a prior art test receiving system structure chart;
Fig. 2 is a multi-path data collecting device structure chart of the present invention;
Fig. 3 is that embodiment of the invention chip testing R-T unit is used schematic diagram;
Fig. 4 is an embodiment of the invention signal processing sequential chart;
Fig. 5 is the multi-path data collecting device first example structure figure of the present invention;
Fig. 6 is embodiment of the invention maximum data delay inequality and memory module storage depth graph of a relation;
Fig. 7 is the data read control module structure chart of embodiment of the invention multi-path data collecting device;
Fig. 8 is the multi-path data collecting device second example structure figure of the present invention;
Fig. 9 is multi-channel data acquisition method step figure of the present invention;
Figure 10 is multi-channel data acquisition method embodiment execution in step figure of the present invention.
Embodiment
As shown in Figure 2, multi-path data collecting device of the present invention mainly comprises following components:
At least two memory cell are used to store each road data to be collected;
Transmitting element is used to send the data of being gathered;
Collecting unit is used for from each memory cell image data alignedly, and sends it to transmitting element.
Main thought of the present invention is: after the multichannel data that will have a different delay is stored in the memory cell corresponding with each circuit-switched data, collecting unit from each memory cell synchronously, reading of data alignedly, make to be stored in to have in the memory cell to be output as after the processing of each circuit-switched data delay inequality, that do not line up through collecting unit and do not have multichannel data delay inequality, alignment, and then the multichannel data that this has alignd sent to compare test of simulation unit, draw test result.
With reference to the accompanying drawings embodiments of the invention are made detailed explanation below.
As shown in Figure 3, in a wireless chip test case, chip to be tested outwards sends the double antenna data of diversity by diversity mode, the test receiving system that is positioned at test lead receives this diversity data, and received two-way diversity data are gathered, with the two paths of data that collects again respectively with the analysis that compares of the emulated data of analogue system, thereby draw the service behaviour of chip to be tested.
In the described in the above test receiving system, there is a multi-path data collecting device, this device can be controlled the process of the two-way diversity data acquisition that is received effectively, the two paths of data with double antenna delay inequality, non-alignment that is received can not had delay inequality, output in the analogue system alignedly.
The input signal of this multi-path data collecting device comprises two-way diversity data A1 and the A2 that is received, and this two-way diversity data synchronization signal A1_sync and A2_sync, in addition, module in this device all is being operated under the system clock environment, so input signal also comprises clock signal clk_sys.As shown in Figure 4.
As shown in Figure 5, particularly, this multi-path data collecting device comprises with lower module:
Go here and there and modular converter for two, corresponding with two-way diversity data A1 and A2 respectively, when test after receiving system receives the diversity data, the diversity data that received are gone here and there by the string of correspondence and modular converter and to change, the parallel data after will change then are written to buffer memory RAM the inside and store.
Two cache module RAM, are used for storing the diversity data through after string and the conversion at corresponding with two-way diversity data respectively linking to each other.Because two-way diversity data were poor if having time when the two-way diversity data that chip to be tested sent reached the test receiving system through aerial transmission, therefore the situation of the data of being stored two RAM the insides is different.
Suppose that it is L nanosecond that two-way diversity data arrive the maximum delay difference of testing receiving equipment, being scaled the clock cycle is X clk cycle duration; The storage depth of the RAM of two buffer memorys is a Y clk cycle duration.Passed through for the two paths of data that chip to be tested is sent simultaneously and to have delayed and side by side to read out again from each RAM the inside when different, must guarantee that then the maximum delay difference of buffer memory depth ratio two-way diversity data of RAM is big, the Y＞X that also is.As shown in Figure 6.
Write control module for two, corresponding with two cache module RAM respectively linking to each other, be used for controlling two-way diversity data writing to the RAM of correspondence.Because two-way diversity data all have synchronizing signal, the starting point of corresponding each circuit-switched data respectively, so this writes control module and control respectively according to two-way diversity data synchronization signal is when writing control module and receive synchronizing signal, promptly notify RAM initialization write address separately, prepare to receive data.Suppose that the initial write address of RAM is 0 in the present embodiment, and write data according to the memory address order.
Read module, is used under the instruction of data read control module according to certain rule from RAM reading of data synchronously simultaneously link to each other corresponding with two RAM modules.It can read the data of the RAM memory address of appointment in the clock cycle of appointment.
The data read control module is a nucleus module in this device, be used to control read module in clock cycle of appointment the RAM memory address reading of data from appointment.
As shown in Figure 7, the data read control module further comprises again with lower module:
The buffer status indicating device is used for detecting the store status of two buffer memory RAM, and when beginning to store data among the buffer memory RAM, state is UP, otherwise is DOWN.Because synchronizing signal A1_sync and the A2_sync of A1 and A2 indicate that respectively diversity data A1 and A2 begin to arrive this test receiving system and enter buffer memory, so the state of this buffer status indicating device is also by synchronizing signal A1_sync and A2_sync decision.After receiving synchronizing signal, the state of corresponding cache is UP.Shown in signal Ram1_en and Ram2_en among Fig. 4.
Allow reading pointer, be used for control and whether allow two buffer memory RAM are begun data read.When only in all buffer memorys, the data that need read being arranged all, when the also promptly last diversity data that arrive have also arrived receiving system, the data that chip to be tested sends simultaneously could be read from buffer memory again alignedly.In practical operation, Ram1_en maybe can be obtained the time state signal Ram_en_1st that the diversity data arrive (time delay minimum) the earliest mutually with Ram2_en, with Ram1_en and Ram2_en with promptly obtain the time state signal Ram_en_2nd that the diversity data arrive (time delay maximum) the latest.According to top described, the state of this permission reading pointer is the Ram_en_2nd signal.Shown in the Ram_en_2nd signal among Fig. 4.
Read trigger, be used to generate read trigger signal, trigger the reading command module and begin reading of data from RAM to read module initiation instruction.The maximum delay difference of supposing two-way diversity data is Lns, being converted to clock signal clk_sys is M cycle duration, the counter Cnt_ofs of design mould K+1 (K＞M is because the maximum delay difference of the buffer memory depth ratio two-way diversity data of RAM is big) is when Ram_en_1st is low level its zero clearing in season; When Ram_en_1st is that high level season, it added 1; When counting down to K+1, stop counting, keep count value constant.When Cnt_ant_ofs=K, triggering Rd_vallow is a high level, and other condition Rd_allow that orders is a low level, and then Rd_allow is the triggering signal that reads RAM.Shown in the Rd_allow signal among Fig. 4.
The reading command module, under the triggering of reading trigger, the reading command module begins to notify read module to begin reading corresponding data from two RAM simultaneously, and sends the time information and the storage address information of data to be read in RAM of reading of data to it.In order to realize these functions, this reading command module comprises following two modules again:
The address lookup module is used for monitoring the stored position information of two each data of RAM, and sends the positional information of data to be read to read module.Shown in the Rd_add signal among Fig. 4.
Read signal generator is used for sending periodically to read module and reads signal, and read module designated storage location from RAM under the control of reading signal in this cycle reads information.Shown in the Rd_en signal among Fig. 4.
Further the RAM in the hypothesis present embodiment is also according to the sequence of addresses sense data, can not need the address lookup module so in actual applications, and in the reading command module after read module sends reading command, read module is sense data synchronously simultaneously from two RAM in order directly.
Sending module, the two-way diversity data that are used for alignment that read module is read from two RAM send to synchronization module, and the analysis that then the two-way diversity data of the two-way diversity data of each alignment and emulation compared draws the service behaviour of this chip to be tested.The data-signal that is sent by sending module is shown in A1_data and A2_data among Fig. 4.
In the above-described embodiments, device of the present invention is applied in the gatherer process of two paths of data, in actual applications, device of the present invention can also be applied to three the road or the data acquisition of above multichannel in.As shown in Figure 8, wherein, A1 ... An represents the input data signal of multichannel, A1_sync ... Ans_ync represents the synchronizing signal corresponding with multiple signals.
Except above-mentioned multi-path data collecting device, the present invention also provides a kind of multi-channel data acquisition method that is applied to said apparatus, and as shown in Figure 9, this method mainly may further comprise the steps:
S10, with the storage to be collected of two-way at least that received in the memory cell corresponding with each circuit-switched data;
S20, from described each memory cell, synchronously gather out each circuit-switched data;
S30, each circuit-switched data of described collection is sent to the subsequent treatment unit.
Below, as embodiment this method is specifically described equally with the wireless chip test that outwards sends the double antenna data of diversity by diversity mode among the said apparatus embodiment.
As shown in figure 10, this embodiment specifically may further comprise the steps:
S11, reception two-way diversity data are stored in them respectively among two cache module RAM.
The diversity data that received are written to the control that is subjected to writing control module among the cache module RAM.Two cache module RAM are respectively to there being one to write control module.Because two-way diversity data all have synchronizing signal, the starting point of corresponding each circuit-switched data respectively, so this writes control module and control respectively according to two-way diversity data synchronization signal is when writing control module and receive synchronizing signal, promptly notify RAM initialization write address separately, prepare to receive data.
S21, judge whether that allowing that two cache module RAM are carried out data in synchronization reads, if, execution in step S22, otherwise, wait for a default time, re-execute step S21.
In the diversity data receiver, there is one to allow reading pointer, is used to refer to and whether allows that two cache module RAM are carried out data in synchronization and read.
Permission is carried out data in synchronization to two cache module RAM and is read, need satisfy needs data in synchronization to be read and be stored in condition in the buffer memory, also be, when only in two buffer memory RAM, all storing the diversity data of reception, allow that just two cache module RAM are begun to carry out data in synchronization and read.In order to monitor the store status of two buffer memory RAM, a buffer status indicating device is arranged in receiving system, when beginning to store data among the buffer memory RAM, the state of this buffer memory RAM correspondence is UP, otherwise is DOWN.
In the present embodiment, because synchronizing signal A1_sync and the A2_sync of A1 and A2 indicate that respectively diversity data A1 and A2 begin to arrive this test receiving system and enter buffer memory, so the state of this buffer status indicating device is also by synchronizing signal A1_sync and A2_sync decision.After receiving diversity data synchronization signal, the state of corresponding cache RAM is UP.
According to top principle, allow the relation of reading pointer and buffer status indicating device to be: when the state of each cache module RAM of buffer status indicator for displaying is UP, allow the state of reading pointer to be the permission reading state, otherwise, for not allowing reading state.
So in fact, this step is: judge the state of current permission reading pointer, when state is the permission reading state, execution in step S22, otherwise, wait for a default time, rejudge.
S22, from two buffer memory RAM sense data synchronously.
After step S21 determine to allow two buffer memory RAM are carried out synchronously data read, equipment can produce a triggering signal and trigger read module and begin reading of data from two buffer memory RAM.
The operation of reading of data is finished by read module from buffer memory RAM.Read module can be under control command according to certain rule reading of data synchronously simultaneously from RAM, also can read the data of the RAM memory address of appointment in the clock cycle of appointment.
In order can to read with being stored in two data sync among the buffer memory RAM, before the read module reading of data, need inquiry to need synchronous data to be read stored position information in RAM, also will determine the synchronously moment of reading of data from two buffer memory RAM simultaneously.Determined after the above-mentioned information that read module just can be in the reading of data of appointment constantly from the designated storage location reading of data of buffer memory RAM.
S31, the data of being gathered are sent to the subsequent treatment module.
Read module is read the two-way diversity data of alignment from two RAM after, the data of this alignment are sent to the subsequent treatment module, the subsequent treatment module is the analysis that compares of the two-way diversity data of the two-way diversity data of each alignment and emulation, thereby draws the service behaviour of this chip to be tested.
Similarly, in the above-described embodiments, method of the present invention is applied in the gatherer process of two paths of data, and in actual applications, method of the present invention also can use three the road or the data acquisition of above multichannel.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. multi-path data collecting device comprises:
At least two memory cell are used for storing respectively each road data to be collected;
Transmitting element is used to send the data of being gathered;
It is characterized in that, also comprise:
Reading unit links to each other respectively with described each memory cell, is used for reading data to be collected by rule from memory cell;
Control unit links to each other with described reading unit, is used for controlling reading unit and synchronously reads data to be collected from described each memory cell, and the described data that read are sent to described transmitting element, and described control unit comprises:
The store status indicating member is used to indicate the state that can read of each data in storage unit;
Allow to read indicating member, be used for indicating whether that according to the data state of can read in described each memory cell allowing that described each memory cell is carried out data in synchronization reads; If described store status indicating member indicates the state of can read of each data in storage unit to be when can read, describedly allow to read indicating member for allowing reading state;
The reading command unit allows to read indicating member and links to each other with described, be used for described allow to read indicating member for the situation that allows reading state under, send reading command respectively to each reading unit.
2. multi-path data collecting device as claimed in claim 1 is characterized in that, described control unit also comprises:
Trigger element is used for allowing to read indicating member and triggering described reading command cell operation under for the condition that allows reading state described.
3. multi-path data collecting device as claimed in claim 1 is characterized in that, described reading command unit also comprises:
The address lookup unit is used to inquire about the positional information of data to be read in memory cell;
Read indicating member, be used to indicate the assigned address reading of data of described reading unit from the memory cell of correspondence.
4. as any one described multi-path data collecting device of claim 1-3, it is characterized in that described data to be collected are two-way dual-antenna diversity data, have two memory cell to be used to store two-way diversity data respectively in the described device.
5. a multi-channel data acquisition method is characterized in that, comprises step:
A, with the storage to be collected of two-way at least that received in the memory cell corresponding with each circuit-switched data;
A1, whether all allow to carry out data read according to described each memory cell and judge whether that allowing that described each memory cell is carried out data in synchronization reads, if the judgment is Yes, execution in step b, otherwise, wait for a default time, re-execute step a1;
B, from described each memory cell, synchronously read out each circuit-switched data;
C, described each circuit-switched data that reads is sent to the subsequent treatment unit.
6. multi-channel data acquisition method as claimed in claim 5 is characterized in that, the described foundation of judging whether memory cell allows to carry out data read is: whether this memory cell stores data.
7. multi-channel data acquisition method as claimed in claim 5 is characterized in that step b comprises step:
Each circuit-switched data that b1, inquiry need be read synchronously is at the stored position information of each memory cell;
B2, according to the stored position information of being inquired about, from each memory cell, synchronously read each corresponding circuit-switched data.
8. as each described multi-channel data acquisition method of claim 5-7, it is characterized in that described data to be collected are two-way dual-antenna diversity data, have two memory cell to be used to store two-way diversity data respectively.
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| CN102607645B (en) | 2012-02-24 | 2014-12-03 | 华为终端有限公司 | Data acquisition method, data acquisition device and mobile terminal |
| CN103595670B (en) * | 2013-11-08 | 2017-07-21 | 北京航天测控技术有限公司 | A kind of signal offset calibration method and device |
| CN104077257B (en) * | 2014-06-25 | 2017-01-04 | 西安电子科技大学 | The measuring method of multi-channel data transmission synchronization delayed time based on FPGA and system |
| CN106197696B (en) * | 2016-07-26 | 2018-08-31 | 浙江宏涛印染机械有限公司 | A kind of forming machine fabric temperature wireless record device and recording method |
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