CN105783894A - Electronic compass based on tunneling magneto-resistive sensor and method - Google Patents
Electronic compass based on tunneling magneto-resistive sensor and method Download PDFInfo
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- CN105783894A CN105783894A CN201610173834.1A CN201610173834A CN105783894A CN 105783894 A CN105783894 A CN 105783894A CN 201610173834 A CN201610173834 A CN 201610173834A CN 105783894 A CN105783894 A CN 105783894A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/28—Electromagnetic compasses
- G01C17/32—Electron compasses
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Abstract
The invention discloses an electronic compass based on a tunneling magneto-resistive sensor and a method. A signal acquiring component is connected with a signal conditioning circuit; the signal conditioning circuit is connected with an information processing component, namely, a microprocessor; the microprocessor is connected with a data output component, namely, an upper computer through a serial port; the upper computer is a laptop computer provided with a wireless network card; the wireless network card of the laptop computer is communicated with a server through a switch in a network; moreover, a triaxial accelerometer is connected with the microprocessor; furthermore, a control cabinet, a through cavity for discharging air and a through cavity for blowing air are provided. By adopting the electronic compass in conjunction with the method, the defects of failure in realizing efficient cooling and extra power consumption during command processing of the laptop computer due to difficulty in realizing sufficient air flow and poor flowing performance in the prior art are overcome.
Description
Technical field
The invention belongs to electronic compass technology field, be specifically related to a kind of electronic compass based on tunnel magneto-resistive sensor and method.
Background technology
When working based on the electronic compass of tunnel magneto-resistive sensor, by TMR sensor Magnetic Field sensitively, obtain the three-axle magnetic field component in carrier coordinate system, gather gravity field information by accelerometer, and calculate attitude angle according to this information.Magnetic Field and attitude angle in combination, transforms in geographic coordinate system by the three-axle magnetic field component in carrier coordinate system, and the ground magnetic component after correction is used for azimuthal calculating.Calculation result exports on notebook computer by serial ports, completes real-time graph and shows and data storage.
With the microprocessor often that notebook computer is connected, microprocessor is connected with notebook computer by serial ports, notebook computer communicates with server again through wireless network card, and notebook computer is with carrying out with the switch in network often by notebook computer between server, and information is mutual and transfer communication, it is eventually sent to server, but for the notebook computer establishing communication link with the switch in network, if in the face of the tracking message of communication link is set up in the requirement of switch mass-sending, or analysis can be performed, this results in extra electrical loss to carry out the process of instruction.
And notebook computer is often arranged in switch board, the term of execution notebook computer will temperature raise, and the part temperatures for information transmission raises just faster, especially in working cycle continual situation, temperature quickly raises and is easy for injuring notebook computer chip, maintenance cost is strengthened, finally makes the life cycle of notebook computer reduce.
Current switch board is an airfast framework, with an installing hole setting up blower fan on the limit wall of switch board, so makes switch board keep normothermic state.
But because the stuffy framework of the cabinet of current switch board, only with an installing hole setting up blower fan on the limit wall of switch board, being difficult to produce the abundant flowing of air, mobile performance is bad, to such an extent as to causes that notebook computer cannot realize the effect of temperature with high efficiency.
Summary of the invention
It is an object of the invention to provide a kind of electronic compass based on tunnel magneto-resistive sensor and method, it is to avoid be difficult to produce the fully flowing of air in prior art, mobile performance is bad to such an extent as to cause that notebook computer cannot realize temperature with high efficiency and extra electrical loss is to carry out the defect of the process of instruction.
In order to overcome deficiency of the prior art, the invention provides the solution of a kind of electronic compass based on tunnel magneto-resistive sensor and method, specific as follows:
A kind of electronic compass based on tunnel magneto-resistive sensor, including signal acquisition parts, described signal acquisition parts are connected with signal conditioning circuit, the same information processing apparatus of described signal conditioning circuit, namely microprocessor is connected, described microprocessor passes through the same data output component of serial ports, namely host computer is connected, described host computer is the notebook computer with wireless network card, the wireless network card of described notebook computer communicates connection by the switch in network with server, and additionally three axis accelerometer is connected with microprocessor；
Described signal acquisition parts include TMR sensor, and described signal conditioning circuit includes interconnective filtering and amplifying circuit and A/D change-over circuit, and described filtering and amplifying circuit is connected with TMR sensor, and described A/D change-over circuit is connected with microprocessor；
Additionally include switch board A1, for the lumen therethrough A2 of air-out and the lumen therethrough A3 for blowing, described notebook computer is set up in switch board A1, the back side of described switch board A1 has the lumen therethrough A2 for air-out, and the edge surface of described switch board A1 has the lumen therethrough A3 for blowing, the described lumen therethrough A2 for air-out is oblique with the lumen therethrough A3 for blowing to be oppositely arranged, with screen cloth A31 on the position of the described lumen therethrough A3 being used for blowing, the bottom surfaces of the described lumen therethrough A3 being used for blowing sets up the blower fan A32 for blowing；Additionally the particular location of the described lumen therethrough A2 being used for air-out is in the top of switch board A1 back surfaces.
Set up the blower fan A21 for air-out, the described blower fan A21 being used for air-out to be oppositely arranged with the described blower fan A32 phase being used for blowing is oblique on the described top for the lumen therethrough A2 of air-out.
Described for setting up roller A212 inside the blower fan A21 of air-out, described roller A212 is connected with some fin A211.
Described fin A211 has some through eye A2111.
Method based on the electronic compass of tunnel magneto-resistive sensor is that step is as follows:
Step 1: after microprocessor is delivered to notebook computer by serial ports information, if notebook computer to carry out information transmission with server, namely when notebook computer carries out information transmission by the switch in network with server, being provided with information communication module and information analysis module in notebook computer, described information communication module sets up the tracking message of communication link for the requirement accepting switch mass-sending；Described information analysis module, it is used for obtaining No. IP of the sender following the tracks of message following the tracks of the kind of message, described mass-sending of switch mass-sending, and, if the requirement that the tracking message of described mass-sending is switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, notebook computer described like that is given up the requirement of described switch mass-sending and is set up other message informations following the tracks of message of communication link；
Further, described information communication module obtains the kind following the tracks of message of described mass-sending by the COS of the heading following the tracks of message of described mass-sending, in the present invention, can analyze just for some information and executing of the heading following the tracks of message of described mass-sending, thus obtain the kind following the tracks of message of described mass-sending, so can more efficiently enter the confirmation of next stage, thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, it is no need for carrying out the analysis of next stage, so prevent from the unnecessary waste of energy.
nullFurther，Described information communication module is obtained the kind following the tracks of message of described mass-sending by the type of service field of the heading following the tracks of message of described mass-sending，In the present embodiment，And this type of service field includes the first field and the second field，First field of described type of service field and the second field identify the kind following the tracks of message of described mass-sending，In conjunction with the present embodiment，When the character of the first field and the second field that notebook computer analyzes this type of service field is " 10 " and " 1110 " respectively，It is assumed that the tracking message of communication link is set up in the requirement that the tracking message going out described mass-sending is switch mass-sending，Extremely efficiently carry out the identification of next stage，Thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time，It is no need for carrying out the analysis of next stage，So prevent from the unnecessary waste of energy，There is no doubt that and also be able to be adopted by the character of the first field of type of service field Yu the second field the requirement that other character information assert that switch is mass-sended to set up the tracking message of communication link，This is mathematical.
Further, notebook computer is possibly together with information analysis module, the signal reception power RSRP of the tracking message of the mass-sending that storage is described is anterior power information, and the signal reception power RSRP storing the message passed from the last time in the switch constituting communication link with described notebook computer before the tracking message accepting described mass-sending is rear portion power information；And, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, then described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link；In the present embodiment, the signal of the message information accepted can be received power and perform detection and storage by described notebook computer, namely signal receives power RSRP as index, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, so described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link, the information transfer efficiency that so can improve.
Further, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge that whether described anterior power information is less than rear portion power information, if it is determined that the result being less than, then described notebook computer is just given up the requirement of described switch mass-sending and set up the tracking message of communication link.
Accompanying drawing explanation
Fig. 1 is the structure chart of the electronic compass based on tunnel magneto-resistive sensor of the present invention.
Fig. 2 is the connection diagram of the switch board of the present invention.
Fig. 3 is the partial side elevation view of the switch board of the present invention.
Fig. 4 is the part back schematic diagram of the switch board of the present invention.
Fig. 5 is the local structural graph of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, summary of the invention is described further:
With reference to shown in Fig. 1-Fig. 5, electronic compass based on tunnel magneto-resistive sensor, including signal acquisition parts, described signal acquisition parts are connected with signal conditioning circuit, the same information processing apparatus of described signal conditioning circuit, namely microprocessor is connected, described microprocessor passes through the same data output component of serial ports, namely host computer is connected, described host computer is the notebook computer with wireless network card, the wireless network card of described notebook computer communicates connection by the switch in network with server, and additionally three axis accelerometer is connected with microprocessor；
Described signal acquisition parts include TMR sensor, and described signal conditioning circuit includes interconnective filtering and amplifying circuit and A/D change-over circuit, and described filtering and amplifying circuit is connected with TMR sensor, and described A/D change-over circuit is connected with microprocessor；
Additionally include switch board A1, lumen therethrough A2 and the lumen therethrough A3 for blowing for air-out, described notebook computer is set up in switch board A1, the back side of described switch board A1 has the lumen therethrough A2 for air-out, and the edge surface of described switch board A1 has the lumen therethrough A3 for blowing, the described lumen therethrough A2 for air-out is oblique with the lumen therethrough A3 for blowing to be oppositely arranged, with screen cloth A31 on the position of the described lumen therethrough A3 being used for blowing, the bottom surfaces of the described lumen therethrough A3 being used for blowing sets up the blower fan A32 for blowing, switch board internal gas flow can be allowed to circulate, the air-flow that temperature is high is removed very easily, cooling effectiveness is high；Additionally the particular location of the described lumen therethrough A2 being used for air-out is in the top of switch board A1 back surfaces, is so oppositely arranged with the lumen therethrough A3 for blowing is oblique so that air current flow is more convenient.
The blower fan A21 for air-out is set up on the described top for the lumen therethrough A2 of air-out, the described blower fan A21 being used for air-out is oppositely arranged with the described blower fan A32 phase being used for blowing is oblique, the so described blower fan A21 being used for air-out, with when the described blower fan A32 synchronous averaging being used for and blowing, just can make cooling effectiveness more preferably improve.
Described for setting up roller A212 inside the blower fan A21 of air-out, described roller A212 is connected with some fin A211.
Described fin A211 has some through eye A2111, it is possible to realize reducing the performance of noise.
Method based on the electronic compass of tunnel magneto-resistive sensor is that step is as follows:
Step 1: after microprocessor is delivered to notebook computer by serial ports information, if notebook computer to carry out information transmission with server, namely when notebook computer carries out information transmission by the switch in network with server, being provided with information communication module and information analysis module in notebook computer, described information communication module sets up the tracking message of communication link for the requirement accepting switch mass-sending；Described information analysis module, it is used for obtaining No. IP of the sender following the tracks of message following the tracks of the kind of message, described mass-sending of switch mass-sending, and, if the requirement that the tracking message of described mass-sending is switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, notebook computer described like that is given up the requirement of described switch mass-sending and is set up other message informations following the tracks of message of communication link；
Further, described information communication module obtains the kind following the tracks of message of described mass-sending by the COS of the heading following the tracks of message of described mass-sending, in the present invention, can analyze just for some information and executing of the heading following the tracks of message of described mass-sending, thus obtain the kind following the tracks of message of described mass-sending, so can more efficiently enter the confirmation of next stage, thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, it is no need for carrying out the analysis of next stage, so prevent from the unnecessary waste of energy.
nullFurther，Described information communication module is obtained the kind following the tracks of message of described mass-sending by the type of service field of the heading following the tracks of message of described mass-sending，In the present embodiment，And this type of service field includes the first field and the second field，First field of described type of service field and the second field identify the kind following the tracks of message of described mass-sending，In conjunction with the present embodiment，When the character of the first field and the second field that notebook computer analyzes this type of service field is " 10 " and " 1110 " respectively，It is assumed that the tracking message of communication link is set up in the requirement that the tracking message going out described mass-sending is switch mass-sending，Extremely efficiently carry out the identification of next stage，Thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time，It is no need for carrying out the analysis of next stage，So prevent from the unnecessary waste of energy，There is no doubt that and also be able to be adopted by the character of the first field of type of service field Yu the second field the requirement that other character information assert that switch is mass-sended to set up the tracking message of communication link，This is mathematical.
Further, notebook computer is possibly together with information analysis module, the signal reception power RSRP of the tracking message of the mass-sending that storage is described is anterior power information, and the signal reception power RSRP storing the message passed from the last time in the switch constituting communication link with described notebook computer before the tracking message accepting described mass-sending is rear portion power information；And, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, then described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link；In the present embodiment, the signal of the message information accepted can be received power and perform detection and storage by described notebook computer, namely signal receives power RSRP as index, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, so described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link, the information transfer efficiency that so can improve.
Further, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge that whether described anterior power information is less than rear portion power information, if it is determined that the result being less than, then described notebook computer is just given up the requirement of described switch mass-sending and set up the tracking message of communication link；In the present embodiment, the signal of the message information accepted can be received power and perform detection and storage by described notebook computer, namely signal receives power RSRP as index, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge that whether described anterior power information is less than rear portion power information, if it is determined that the result being less than, so described notebook computer is just given up the requirement analyzing described switch mass-sending and is set up the tracking message of communication link and change without making, the information transfer efficiency that so can improve can also power saving, save cost.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, without departing within the scope of technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, technical spirit according to the present invention, within the spirit and principles in the present invention, the any simple amendment that above example is made, equivalent replacement and improvement etc., all still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. the electronic compass based on tunnel magneto-resistive sensor, it is characterized in that, including signal acquisition parts, described signal acquisition parts are connected with signal conditioning circuit, the same information processing apparatus of described signal conditioning circuit, namely microprocessor is connected, described microprocessor passes through the same data output component of serial ports, namely host computer is connected, described host computer is the notebook computer with wireless network card, the wireless network card of described notebook computer communicates connection by the switch in network with server, and additionally three axis accelerometer is connected with microprocessor；
Described signal acquisition parts include TMR sensor, and described signal conditioning circuit includes interconnective filtering and amplifying circuit and A/D change-over circuit, and described filtering and amplifying circuit is connected with TMR sensor, and described A/D change-over circuit is connected with microprocessor；
Additionally include switch board, for the lumen therethrough of air-out and the lumen therethrough for blowing, described notebook computer is set up in switch board, the back side of described switch board has the lumen therethrough for air-out, and the edge surface of described switch board has the lumen therethrough for blowing, the described lumen therethrough for air-out is oblique with the lumen therethrough for blowing to be oppositely arranged, with screen cloth on the position of the described lumen therethrough being used for blowing, the bottom surfaces of the described lumen therethrough being used for blowing sets up the blower fan for blowing；Additionally the particular location of the described lumen therethrough A2 being used for air-out is in the top of switch board A1 back surfaces.
2. the electronic compass based on tunnel magneto-resistive sensor according to claim 1, it is characterized in that setting up the blower fan for air-out on the described top for the lumen therethrough of air-out, the described blower fan being used for air-out is oppositely arranged with the described blower fan being used for blowing is mutually oblique.
3. the electronic compass based on tunnel magneto-resistive sensor according to claim 1, it is characterised in that described for setting up roller inside the blower fan of air-out, described roller is connected with some fins.
4. the electronic compass based on tunnel magneto-resistive sensor according to claim 3, it is characterised in that have some through eyes on described fin.
5. the method for the electronic compass based on tunnel magneto-resistive sensor according to claim 1 is, it is characterised in that step is as follows:
Step 1: after microprocessor is delivered to notebook computer by serial ports information, if notebook computer to carry out information transmission with server, namely when notebook computer carries out information transmission by the switch in network with server, being provided with information communication module and information analysis module in notebook computer, described information communication module sets up the tracking message of communication link for the requirement accepting switch mass-sending；Described information analysis module, it is used for obtaining No. IP of the sender following the tracks of message following the tracks of the kind of message, described mass-sending of switch mass-sending, and, if the requirement that the tracking message of described mass-sending is switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, notebook computer described like that is given up the requirement of described switch mass-sending and is set up other message informations following the tracks of message of communication link；
Described information communication module obtains the kind following the tracks of message of described mass-sending by the COS of the heading following the tracks of message of described mass-sending, in the present invention, can analyze just for some information and executing of the heading following the tracks of message of described mass-sending, thus obtain the kind following the tracks of message of described mass-sending, so can more efficiently enter the confirmation of next stage, thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time, it is no need for carrying out the analysis of next stage；
nullDescribed information communication module is obtained the kind following the tracks of message of described mass-sending by the type of service field of the heading following the tracks of message of described mass-sending，In the present embodiment，And this type of service field includes the first field and the second field，First field of described type of service field and the second field identify the kind following the tracks of message of described mass-sending，In conjunction with the present embodiment，When the character of the first field and the second field that notebook computer analyzes this type of service field is " 10 " and " 1110 " respectively，It is assumed that the tracking message of communication link is set up in the requirement that the tracking message going out described mass-sending is switch mass-sending，Thus the tracking message in described mass-sending be the requirement of switch mass-sending set up No. IP of the sender following the tracks of message following the tracks of message and described mass-sending of communication link constructed with described notebook computer No. IP of the node that the information of communication link forwards consistent time，It is no need for carrying out the analysis of next stage；
Notebook computer is possibly together with information analysis module, the signal reception power RSRP of the tracking message of the mass-sending that storage is described is anterior power information, and the signal reception power RSRP storing the message passed from the last time in the switch constituting communication link with described notebook computer before the tracking message accepting described mass-sending is rear portion power information；And, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, then described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link；In the present embodiment, the signal of the message information accepted can be received power and perform detection and storage by described notebook computer, namely signal receives power RSRP as index, the described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge whether described anterior power information is not less than rear portion power information, if it is determined that the result being no less than, so described notebook computer continues to analyze the requirement of described switch mass-sending and sets up the tracking message of communication link；
The described mass-sending described in information communication module identification follow the tracks of No. IP of sender of message constructed with described notebook computer No. IP of the node that the information of communication link forwards inconsistent time, also continue to judge that whether described anterior power information is less than rear portion power information, if it is determined that the result being less than, then described notebook computer is just given up the requirement of described switch mass-sending and set up the tracking message of communication link.
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| CN106097213A (en) * | 2016-08-30 | 2016-11-09 | 郑州威科姆科技股份有限公司 | Student's statistical system and method thereof |
| CN106210142A (en) * | 2016-08-30 | 2016-12-07 | 郑州威科姆科技股份有限公司 | Individual's statistical system and method thereof |
| CN106375305A (en) * | 2016-08-30 | 2017-02-01 | 郑州威科姆科技股份有限公司 | Sharing and forwarding system and method |
| CN106373056A (en) * | 2016-08-30 | 2017-02-01 | 郑州威科姆科技股份有限公司 | Comment system and method |
| CN106447556A (en) * | 2016-08-30 | 2017-02-22 | 郑州威科姆科技股份有限公司 | Curriculum task system capable of responding in time and method thereof |
| CN109637639A (en) * | 2018-11-13 | 2019-04-16 | 张兆芳 | A kind of hospital bed Added Management information system |
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