CN104850573A - Data collection method and device - Google Patents
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- CN104850573A CN104850573A CN201410690919.8A CN201410690919A CN104850573A CN 104850573 A CN104850573 A CN 104850573A CN 201410690919 A CN201410690919 A CN 201410690919A CN 104850573 A CN104850573 A CN 104850573A
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Abstract
The invention provides a data collection method and device. The data collection method comprises the steps of collecting data according to a first time interval; forming a data package by the collected data, wherein the data in the data package is arranged according to the collection sequence; and sending the data package according to a second time interval, wherein the second time interval is greater than the first time interval. According to the data collection method provided by the invention, a collected side collects data at a small time interval, forms the data package by the collected data, and then sends the data package to a collecting side. The collecting frequencies of a plurality of data in the data package are high, so that the collecting work breaks through the limitation of communication capacity, and the accuracy of collecting work is improved.
Description
Technical field
The present invention relates to data collecting field, be specifically related to a kind of collecting method and device.
Background technology
Data acquisition refers to automatic data collection from the analog-and digital-unit under tests such as sensor and other Devices to test, and is sent to the process carrying out in host computer analyzing, processing.Data acquisition system (DAS) is that the measurement software and hardware product combined based on computing machine or other dedicated testing platforms realizes flexibly, user-defined measuring system.At present, when host computer gathers the data of slave computer, the communication protocol used is generally CCP, XCP.For CCP (CAN Calibration Protocol), it is the ECU calibration software based on CAN, by CAN communication speed and CPU to the restriction of CAN communication data-handling capacity, the frequency acquisition of data is generally more than ms level, namely host computer initiates an acquisition every some ms, correspondingly, data are transmitted to host computer when slave computer receives acquisition instructions.And in many applications, to some or several critical data, need to monitor its real-time variation tendency at some special time period, collection period now needs to be accurate to us level, as hundreds of us, even tens us, and existing collecting method is subject to the impact of collection period, its degree of accuracy is lower can not satisfy the demands.
Such as host computer needs the value gathering a variable M to slave computer, host computer can send corresponding this order of the next opportunity response of acquisition (order as the SHORT_UP in CCP) at set intervals, sends to host computer by the current M value collected; Or some acquisition system is that slave computer initiatively sends a secondary data to host computer at set intervals, such as slave computer initiatively sends order (the DAQ related command as in CCP) to host computer at set intervals, and namely slave computer initiatively sends the M value of current collection to host computer.A host computer or slave computer often mutual subcommand in obvious above-mentioned gatherer process, host computer can only receive data, suppose that slave computer sends a secondary data every 1000us, as shown in Figure 1, the time interval is wherein the minimum transmission time interval of communications command to display result so in host computer interface.This time interval is subject to CAN communication speed and CPU to the restriction of CAN communication data-handling capacity, and the data between two time points are accurate not.
Summary of the invention
For this reason, technical matters to be solved by this invention is the accuracy improving data collection task.
The invention provides a kind of collecting method, comprising: according to very first time interval image data; By gathered data composition packet, the data in described packet arrange according to its collected order; Send described packet according to second time interval, described second interval greater than described very first time interval.
Preferably, described packet is array, and the data gathered are the element of described array.
Preferably, described second time interval is the time interval receiving the acquisition instructions that collection side sends.
The invention provides another kind of collecting method, comprising: receive packet, described packet comprises collected data; The collected order of described data is determined according to the data ordering order in described packet; Data according to the collected order of described data and collected time showing.
Preferably, also comprised before described reception packet: send acquisition instructions according to second time interval.
Preferably, the described collected time determines according to the data bulk in described second time interval and described packet.
Preferably, the described collected time is determined according to very first time interval, and wherein said very first time interval is the time interval that collected side gathers described data.
Correspondingly, the invention provides a kind of data collector, comprising: collecting unit, for according to very first time interval image data; Storage unit, for gathered data are formed packet, the data in described packet arrange according to its collected order; Transmitting element, for sending described packet according to second time interval, described second interval greater than described very first time interval.
Preferably, described packet is array, and the data gathered are the element of described array.
Preferably, described second time interval is the time interval receiving the acquisition instructions that collection side sends.
The invention provides another kind of data collector, comprising: receiving element, for receiving packet, described packet comprises collected data; Resolution unit, for determining the collected order of described data according to the data ordering order in described packet; Display unit, for data according to the collected order of described data and collected time showing.
Preferably, described device also comprises: transmitting element, before receiving packet at described receiving element, sends acquisition instructions according to second time interval.
Preferably, the described collected time determines according to the data bulk in described second time interval and described packet.
Preferably, the described collected time is determined according to very first time interval, and wherein said very first time interval is the time interval that collected side gathers described data.
Compared with prior art, collecting method provided by the invention and by collected side with less time interval image data, and by gathered data composition packet, then collection side is given by Packet Generation, the frequency acquisition of the multiple data in this packet is higher, make collecting work overcome the restriction of communication capacity, and then improve the accuracy of collecting work.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is data acquisition results schematic diagram in prior art;
Fig. 2 is the process flow diagram of the collecting method that first embodiment of the invention provides;
Fig. 3 is the process flow diagram of the collecting method that second embodiment of the invention provides;
Fig. 4 be application the embodiment of the present invention provide collecting method time collection result schematic diagram;
Fig. 5 is the structural representation that third embodiment of the invention provides data collector;
Fig. 6 is the structural representation of the data collector that fourth embodiment of the invention provides.
Embodiment
First embodiment of the invention provides a kind of collecting method, and the method can perform in slave computer, and the method comprises as shown in Figure 2:
S21, according to very first time interval image data, such as host computer needs the value gathering a variable M to slave computer, supposes that slave computer gathers the value of a M every 200us (i.e. very first time interval), within the 0-1000us time period, 6 M values can be gathered.For the data that requirement of real-time is higher, slave computer can utilize the shorter time interval to sample.
S22, by gathered data composition packet, the data in described packet are according to the arrangement of its collected order, and by above-mentioned 6 M value compositions packet, wherein the order of M value arranges according to collected order.
The data sequence determining in packet easily to make the host computer of reception packet, preferably, packet can be array, and the data gathered are as the element of described array.Such as above-mentioned 6 M values, correspondingly can define the array ArrayM [] that a capacity is 6, first store one by one from first array element ArrayM [0] to during ArrayM [] store M value, after last array element ArrayM [5] stores data, namely this array is filled with, such as:
It will be appreciated by those skilled in the art that in the present embodiment and adopt the collected data of storage of array just a kind of preferred mode, it is also feasible for utilizing other data structure to store data, such as, also can determine the order stored according to the memory address of data.
S23, sends described packet according to second time interval, and described second interval greater than described very first time interval.Namely slave computer sends the above-mentioned packet having 6 M values to host computer, slave computer can be initiatively send packet to host computer, but be subject to the restriction of communication capacity, send (i.e. second time interval in the time interval of packet, 1000us in the present embodiment) time interval (i.e. very first time interval is 200us in the present embodiment) of slave computer self image data must be greater than; Or also can be send packet to host computer after slave computer receives the acquisition instructions of host computer transmission.Continue to send collected data to host computer as needed and can repeat this method.
According to the collecting method that the embodiment of the present invention provides, by collected side with less time interval image data, and by gathered data composition packet, then collection side is given by Packet Generation, the frequency acquisition of the multiple data in this packet is higher, make collecting work overcome the restriction of communication capacity, and then improve the accuracy of collecting work.
For some acquisition system, slave computer needs the acquisition feedback data according to host computer, preferably, described second time interval is the time interval receiving the acquisition instructions that collection side sends, namely just to its feedback data packet when slave computer receives the acquisition instructions of host computer, if packet is array, then should select the capacity of array according to very first time interval and second time interval.
In practical application, can also be this method setting trigger condition for different collection capacity demands, when a triggering condition is met, namely slave computer performs this method, and in other situations, slave computer still can according to existing method collection and to host computer transmission data.Such as slave computer is initiatively sent to the scene of image data to host computer, it can be slave computer Preset Time point, slave computer when arriving default time point is only had just to perform this method, in other times, slave computer only sends data to host computer each time, the image data that corresponding host computer receives only comprises multiple refining data of slave computer active acquisition within certain time period, and other times point is still the corresponding data of each time point.Setting trigger condition can improve the efficiency of data acquisition operations, makes data acquisition operations more targeted.
Second embodiment of the invention also provides a kind of collecting method, and the method can perform in host computer, and the method comprises as shown in Figure 3:
S31, receive packet, described packet comprises collected data; The packet that this packet and slave computer send, equally for above-mentioned M value, the packet that host computer receives comprises 6 M values.
S32, the collected order of described data is determined according to the data ordering order in described packet, because the data in this packet are tactic according to data acquisition, so host computer only needs order to read the collected order of the Value Data of each data wherein, such as array ArrayM [], only need to read one by one from first array element ArrayM [0], after last array element ArrayM [5] is read, namely determines the order of all elements in this array.Those skilled in the art are to be understood that the packet in this method is not limited to array, and this packet can be other data structures, and host computer can determine the order of data by the memory address of data each in packet.
S33, data according to the collected order of described data and collected time showing.Host computer can will receive the collected time of time first data in packet of packet, then according to data bulk in packet or the collected time determining follow-up data according to the time interval of known slave computer image data, such as 0us, M value is 16; 200us, M value is 20 ... 1000us, M value is 34, and as shown in Figure 4, wherein the time interval of each data is 200us to the M value demonstrated, and is obviously less than the 1000us shown in Fig. 1.As needs continue can repeat this method to slave computer image data.
According to the collecting method that the embodiment of the present invention provides, the collected packet putting transmission is received by collection side, this packet comprises multiple data that slave computer gathered with the less time interval, data acquiring frequency in this packet is higher, overcome the restriction of communication capacity, improve the accuracy of collecting work.
For some acquisition system, slave computer needs the acquisition feedback data according to host computer, and preferably, this method also comprised before S31:
S30, sends acquisition instructions according to second time interval.In the case, the described collected time can be determine according to the data bulk in described second time interval and described packet.Such as, host computer sends first time acquisition instructions at start time point (0us), the time point that second time sends acquisition instructions is 1000us, and host computer sends the time interval (second time interval) of acquisition is as can be seen here 1000us.If have 6 data in the packet of slave computer for first time acquisition instructions feedback, so the acquisition time of wherein first data is then defined as 0us by host computer, 5 data are also comprised in packet except these first data, so host computer can calculate 1000us/5, thus determine that in packet, the collected time interval of adjacent data is 200us, namely can determine that the collected time of 6 data in packet is 0us, 200us respectively ... 1000us.
Or, host computer can learn the acquisition time interval of slave computer in advance, so the described collected time can be determined according to very first time interval, very first time interval is the time interval of slave computer image data, and obvious very first time interval was less than for second time interval.Such as host computer learns that the acquisition time interval of slave computer is 200us in advance, if the time receiving packet is considered as 0us, then can determine that the collected time of 6 data in packet is 0us, 200us respectively ... 1000us.
Preferably, when host computer shows described data, the data in different pieces of information bag have difference visual signature.Namely host computer can be distinguished display and belongs to the data content of different pieces of information bag, such as, can arrange different colours or line style is distinguished it, and the data that this method can make slave computer independently gather are more obvious, make display effect more directly perceived.
Third embodiment of the invention provides a kind of data collector, and this device is corresponding with the method performed by slave computer in above-described embodiment, and this device comprises as shown in Figure 5:
Collecting unit 51, for according to very first time interval image data;
Storage unit 52, for gathered data are formed packet, the data in described packet arrange according to its collected order;
Transmitting element 53, for sending described packet according to second time interval, described second interval greater than described very first time interval.
The data collector that the embodiment of the present invention provides by collected side with less time interval image data, and by gathered data composition packet, then collection side is given by Packet Generation, the frequency acquisition of the multiple data in this packet is higher, make collecting work overcome the restriction of communication capacity, and then improve the accuracy of collecting work.
Preferably, described packet is array, and the data gathered are the element of described array.Use the data sequence that the form of array can make the host computer of reception packet determine in packet more easily.
For some acquisition system, slave computer needs the acquisition feedback data according to host computer, and preferably, described second time interval is the time interval receiving the acquisition instructions that collection side sends.
Fourth embodiment of the invention also provides a kind of data collector, and this device is corresponding with the method performed by host computer in above-described embodiment, and this device comprises as shown in Figure 6:
Receiving element 61, for receiving packet, described packet comprises collected data;
Resolution unit 62, for determining the collected order of described data according to the data ordering order in described packet;
Display unit 63, for data according to the collected order of described data and collected time showing.
The data collector that the embodiment of the present invention provides receives the collected packet putting transmission by the side of collection, this packet comprises multiple data that slave computer gathered with the less time interval, data acquiring frequency in this packet is higher, overcome the restriction of communication capacity, improve the accuracy of collecting work.
For some acquisition system, slave computer needs the acquisition feedback data according to host computer, and preferably, this device also comprises:
Transmitting element 60, before receiving packet at described receiving element, sends acquisition instructions according to second time interval.In the case, the described collected time determines according to the data bulk in described second time interval and described packet.
Preferably, slave computer is initiatively sent to the situation of data to host computer, the described collected time is determined according to very first time interval, and wherein said very first time interval is the time interval that collected side gathers described data.
Preferably, when described display unit shows described data, the data in different pieces of information bag have difference visual signature.The data that this device can make slave computer independently gather are more obvious, make display effect more directly perceived.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. a collecting method, is characterized in that, comprising:
According to very first time interval image data;
By gathered data composition packet, the data in described packet arrange according to its collected order;
Send described packet according to second time interval, described second interval greater than described very first time interval.
2. collecting method according to claim 1, is characterized in that, described packet is array, and the data gathered are the element of described array.
3. collecting method according to claim 1 and 2, is characterized in that, described second time interval is the time interval receiving the acquisition instructions that collection side sends.
4. a collecting method, is characterized in that, comprising:
Receive packet, described packet comprises collected data;
The collected order of described data is determined according to the data ordering order in described packet;
Data according to the collected order of described data and collected time showing.
5. collecting method according to claim 4, is characterized in that, also comprises before described reception packet:
Acquisition instructions is sent according to second time interval.
6. collecting method according to claim 5, is characterized in that, the described collected time determines according to the data bulk in described second time interval and described packet.
7. the collecting method according to claim 4 or 5, is characterized in that, the described collected time is determined according to very first time interval, and wherein said very first time interval is the time interval that collected side gathers described data.
8. a data collector, is characterized in that, comprising:
Collecting unit, for according to very first time interval image data;
Storage unit, for gathered data are formed packet, the data in described packet arrange according to its collected order;
Transmitting element, for sending described packet according to second time interval, described second interval greater than described very first time interval.
9. a data collector, is characterized in that, comprising:
Receiving element, for receiving packet, described packet comprises collected data;
Resolution unit, for determining the collected order of described data according to the data ordering order in described packet;
Display unit, for data according to the collected order of described data and collected time showing.
10. data collector according to claim 9, is characterized in that, the described collected time is determined according to very first time interval, and wherein said very first time interval is the time interval that collected side gathers described data.
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| CN201410690919.8A CN104850573A (en) | 2014-11-25 | 2014-11-25 | Data collection method and device |
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| CN106776221A (en) * | 2016-12-19 | 2017-05-31 | 广州视源电子科技股份有限公司 | Power parameter monitoring and control method and system |
| CN107346981A (en) * | 2017-05-16 | 2017-11-14 | 北京数科技有限公司 | Data transmission method for uplink, method of reseptance and data sending device, reception device |
| CN109272834A (en) * | 2017-07-18 | 2019-01-25 | 南京理工大学 | The high-frequency data display system of power supply conversion practice teaching table based on PLC |
| CN109946420A (en) * | 2017-12-21 | 2019-06-28 | 智能城市网络有限公司 | For sending the device and method of atmospheric environment data |
| CN110045675A (en) * | 2019-05-10 | 2019-07-23 | 四川航天神坤科技有限公司 | Data processing method, data processing module based on PLC |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106776221A (en) * | 2016-12-19 | 2017-05-31 | 广州视源电子科技股份有限公司 | Power parameter monitoring and control method and system |
| CN107346981A (en) * | 2017-05-16 | 2017-11-14 | 北京数科技有限公司 | Data transmission method for uplink, method of reseptance and data sending device, reception device |
| CN109272834A (en) * | 2017-07-18 | 2019-01-25 | 南京理工大学 | The high-frequency data display system of power supply conversion practice teaching table based on PLC |
| CN109946420A (en) * | 2017-12-21 | 2019-06-28 | 智能城市网络有限公司 | For sending the device and method of atmospheric environment data |
| CN110045675A (en) * | 2019-05-10 | 2019-07-23 | 四川航天神坤科技有限公司 | Data processing method, data processing module based on PLC |
| CN111103841A (en) * | 2019-12-31 | 2020-05-05 | 研祥智能科技股份有限公司 | Industrial control data monitoring method and system |
| WO2021147021A1 (en) * | 2020-01-22 | 2021-07-29 | 北京微动数联科技有限公司 | Internet of things data acquisition and encapsulation apparatus and method |
| CN111596645A (en) * | 2020-05-19 | 2020-08-28 | 北京微科能创科技有限公司 | Data processing method, device and computer readable storage medium |
| CN111596645B (en) * | 2020-05-19 | 2022-01-21 | 北京微科能创科技有限公司 | Data processing method, device and computer readable storage medium |
| CN112162691A (en) * | 2020-09-29 | 2021-01-01 | 深圳市英威腾电动汽车驱动技术有限公司 | Data acquisition method, device and storage medium |
| CN112859677A (en) * | 2021-01-06 | 2021-05-28 | 青岛高测科技股份有限公司 | Data acquisition system of spindle test bed |
| CN112507251A (en) * | 2021-02-04 | 2021-03-16 | 浙江所托瑞安科技集团有限公司 | Data processing method and device, server and computer readable storage medium |
| CN113645097A (en) * | 2021-08-11 | 2021-11-12 | 深圳市元征科技股份有限公司 | Vehicle signal monitoring method, terminal equipment and electronic control unit |
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