CN114543845B - Flexible expandable shaft angle digital conversion device - Google Patents
Flexible expandable shaft angle digital conversion device Download PDFInfo
- Publication number
- CN114543845B CN114543845B CN202210168292.4A CN202210168292A CN114543845B CN 114543845 B CN114543845 B CN 114543845B CN 202210168292 A CN202210168292 A CN 202210168292A CN 114543845 B CN114543845 B CN 114543845B
- Authority
- CN
- China
- Prior art keywords
- module
- shaft angle
- power supply
- digital
- rotary transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a flexible and expandable shaft angle digital conversion device, which belongs to the technical field of angle detection and comprises at least two shaft angle conversion modules, a digital signal processing module (CPLD), a microcontroller module (DSP controller), at least one DC/DC module and at least one DC/AC module. The invention can be compatible with single-double-channel rotary transformers and multiple rotary transformer transformation ratios; the analog signal of the rotary transformer CAN be converted into a digital quantity signal, and the digital quantity signal is transmitted out through a synchronous serial port, an asynchronous serial port, a network port and a CAN communication port and is provided for acquisition equipment; the exciting power supply required by different rotary transformers can be output, the problems of input signal compatibility and output interface compatibility are solved, the equipment cost is reduced, the debugging time is shortened, the system reliability is improved, and the exciting power supply is worthy of being popularized and used.
Description
Technical Field
The invention relates to the technical field of angle detection, in particular to a flexible and expandable shaft angle digital conversion device.
Background
The rotary transformer is widely applied to angle detection occasions and widely applied to angle position control systems in the fields of aviation, aerospace, navigation, weapons and the like. Along with the higher and higher precision requirement of angle detection, the variety of the use of rotary transformers is also more and more, there is single channel rotary transformer, binary channels rotary transformer, the transformation ratio of each rotary transformer is also different, at present, independent axle angle decoding chip and rotary transformer excitation power supply are purchased in rotary transformer application occasion, then redesign production is carried out according to the system requirement, different rotary transformers all need different model axle angle decoding chip, different types of rotary transformers require different excitation power supply to supply power to rotary transformers, angle information after the conversion of axle angle decoding chip is externally transmitted in a digital parallel port mode, each product use needs to be redesigned, and production, debugging, time cost and production cost are higher. The above problems need to be solved, and therefore, a flexible and expandable shaft angle digital conversion device is provided.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: how to solve the compatibility problem of various rotary transformers in angle decoding, a flexible and expandable shaft angle digital conversion device is provided, the problems of power supply, input signal compatibility and output interface compatibility of different rotary transformers are solved, the equipment cost is reduced, the debugging time is shortened, and the system reliability is improved.
The invention solves the technical problems through the following technical proposal that
The device comprises two shaft angle conversion modules, a CPLD, a DSP controller, a DC/DC module and a DC/AC module;
the shaft angle conversion module is used for converting analog angle signals of the rotary transformer into parallel digital quantity signals;
the CPLD is used for outputting the angle digital signal after encoding;
the DSP controller is used for receiving external dialing signals, converting the corresponding dialing signals into different level signals to control the single double channels and the output digital quantity bit number of the shaft angle conversion module, and generating a reference clock signal to control the output coding frequency of the CPLD;
the DC/DC module is used for converting an external input direct current power supply into a direct current power supply required by each hardware;
the DC/AC module is used for converting the direct current power supply converted by the DC/DC module into alternating current power supply for the rotary transformer;
the DC power supply is input to the two shaft angle conversion modules and the DC/AC module after the DC/DC module is converted, analog angle signals of the two rotary transformers are input to the two shaft angle conversion modules respectively, the two shaft angle conversion modules are connected with the CPLD respectively, the CPLD is connected with the DSP controller, the DSP controller is connected with the shaft angle conversion modules respectively, one output end of the DC/AC module is connected with the rotary transformers to output exciting power supply to the DC/AC module, and the other output end of the DC/AC module is connected with the shaft angle conversion modules.
Further, the external input DC power source ranges from +18v to +28v, and in this embodiment, a +24vdc DC power source input is selected, one of the DC/DC modules may convert the external input +24vdc DC power source to +5vdc, +15vdc, -15vdc, and the DC/AC module may convert the external input +15vdc, -15vdc to 26VAC (2000 Hz, 2600 Hz) or 36VAC (2000 Hz).
Further, in the shaft angle conversion module, the analog angle signal of the rotary transformer is converted into a digital quantity signal of 16-19 bits in parallel.
Furthermore, in the CPLD, the digital signals are encoded according to the use requirements of different external output interfaces, so that the digital signals are transmitted through the output interfaces of the DSP controller.
Furthermore, the DSP controller is provided with a plurality of output interfaces, namely a serial port, a network port and a CAN port, and the serial ports are divided into an asynchronous serial port and a synchronous serial port.
Still further, the shaft angle digital conversion device further comprises a power input interface through which an external input direct current power is input to the DC/DC module.
Still further, the shaft angle digital conversion device further includes a resolver input interface through which an analog angle signal of the resolver is input into the shaft angle conversion module.
Furthermore, the angles of the two rotary transformers can be collected and encoded simultaneously, which is the first working mode, or only one rotary transformer angle value can be collected and encoded, which is the second working mode.
Furthermore, the DSP controller is also provided with a hardware setting port, corresponding hardware bits are set through the hardware setting port, and the level of the hardware setting port is pulled up to +5VDC, so that the working mode selection, the decoding output bit number selection and the communication baud rate selection of the shaft angle conversion module are realized.
Furthermore, the DSP controller and the CPLD are both provided with programming ports, and the DSP controller is connected with the CPLD through a digital interface.
Compared with the prior art, the invention has the following advantages: the flexible expandable shaft angle digital conversion device can be compatible with single-channel rotary transformers and multiple rotary transformer transformation ratios; the analog signal of the rotary transformer CAN be converted into a digital quantity signal, and the digital quantity signal is transmitted out through a synchronous serial port, an asynchronous serial port, a network port and a CAN communication port and is provided for acquisition equipment; the exciting power supply required by different rotary transformers can be output, the problems of input signal compatibility and output interface compatibility are solved, the equipment cost is reduced, the debugging time is shortened, the system reliability is improved, and the exciting power supply is worthy of being popularized and used.
Drawings
FIG. 1 is a top view of an internal layout of a two-axis angle digitizer according to an embodiment of the present invention;
FIG. 2 is a diagram showing the external appearance of a two-axis angle digital conversion device according to an embodiment of the present invention;
FIG. 3 is a side view of a two-axis angle digitizer device according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a single-pass shaft angle digital conversion device in accordance with a second embodiment of the present invention;
FIG. 5 is a schematic block diagram of an axial angle digital conversion device expanded into two paths in a second embodiment of the present invention;
fig. 6 is a block diagram of a software architecture of a two-axis angle digital conversion device according to an embodiment of the present invention.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
The embodiment provides a technical scheme: a flexible and expandable shaft angle digital conversion device comprises two shaft angle conversion modules, a CPLD, a DSP controller, a DC/DC module and a DC/AC module;
the shaft angle conversion module is used for converting analog angle signals of the rotary transformer into parallel digital quantity signals;
the CPLD is used for outputting the angle digital signal after encoding;
the DSP controller is used for receiving external dialing signals, converting the corresponding dialing signals into different level signals to control the single double channels and the output digital quantity bit number of the shaft angle conversion module, and generating a reference clock signal to control the output coding frequency of the CPLD;
the DC/DC module is used for converting an external input direct current power supply into a direct current power supply required by each hardware;
the DC/AC module is used for converting the direct current power supply converted by the DC/DC module into alternating current power supply for the rotary transformer;
the DC power supply is input to the two shaft angle conversion modules and the DC/AC module after the DC/DC module is converted, analog angle signals of the two rotary transformers are input to the two shaft angle conversion modules respectively, the two shaft angle conversion modules are connected with the CPLD respectively, the CPLD is connected with the DSP controller, the DSP controller is connected with the shaft angle conversion modules respectively, one output end of the DC/AC module is connected with the rotary transformers to output exciting power supply to the DC/AC module, and the other output end of the DC/AC module is connected with the shaft angle conversion modules.
The range of the externally input DC power supply is +18V to +28V, and the externally input DC power supply is +24VDC DC power supply input in the embodiment, one DC/DC module can convert the externally input +24VDC DC power supply into +5VDC, +15VDC and-15VDC, and the DC/AC module can convert the +15VDC and-15VDC into 26VAC (2000 Hz, 2600 Hz) or 36VAC (2000 Hz).
In the shaft angle conversion module, an analog angle signal of the rotary transformer is converted into a digital quantity signal of 16-19 bits in parallel.
In the CPLD, the digital signals are encoded according to the use requirements of different external output interfaces, so that the digital signals are transmitted out through the output interfaces of the DSP controller.
The DSP controller is provided with a plurality of output interfaces, namely a serial port, a network port and a CAN port, wherein the serial port is divided into an asynchronous serial port and a synchronous serial port.
The shaft angle digital conversion device further comprises a power input interface, and an external input direct current power supply is input into the DC/DC module through the power input interface.
The shaft angle digital conversion device also comprises a rotary transformer input interface, and an analog angle signal of the rotary transformer is input into the shaft angle conversion module through the rotary transformer input interface.
The angles of the two rotary transformers can be simultaneously acquired and encoded, and only one rotary transformer angle value can be acquired.
The DSP controller is also provided with a hardware setting port, corresponding hardware bits are set through the hardware setting port, and the level of the hardware setting port is pulled up to +5VDC, so that the single-double-channel mode selection, the decoding output bit number selection and the communication baud rate selection of the shaft angle conversion module are realized.
The shaft angle digital conversion device further comprises a DSP controller, programming ports are formed in the DSP controller and the CPLD, and the DSP controller is connected with the CPLD through a digital interface.
Example two
As shown in fig. 1-3, the device adopts modularized power supply conversion, exciting power supply, shaft angle conversion module, DSP controller+clpd combination to realize the function, whole modularized device is installed on the printed circuit board, the printed circuit board adopts cold plate design, directly generates heat with the device and dispels the heat through the cold plate, equipment such as fan is avoided installing, reduce cost and improve reliability, the printed circuit board is installed in the metal seal box, the metal seal box adopts waterproof design, the outdoor use environment adaptability of the device is improved, the device adopts aviation waterproof connector to the external interface, install outside the casing, directly adopt connector plug to insert during the use.
The device mainly comprises two shaft angle conversion modules (comprising shaft angle conversion modules 1 and 2), a CPLD, a DSP controller, a plurality of power supply conversion modules (comprising DC/DC modules 1 and DC/AC modules 1 and 2), a power supply input and programming connector 3, a rotary transformer 1 input interface 4, a rotary transformer 2 input interface 5, a shaft angle output interface 7 and a hardware setting port 6.
The system block diagram of the device in the single-channel mode is shown in fig. 4, the device can be further expanded to two-channel rotary transformer decoding, and the metal box, the printed circuit board and the external interface of the device are reserved with two-channel rotary transformer input and output interfaces, so that the chip mounting of each module can be carried out according to the use requirement, and the cost is saved. The system block diagram of the device in the two-way mode is shown in fig. 5, and two rotary transformer angle values can be acquired simultaneously. The two rotary transformers can have different speed ratios and different excitation voltages, one can be single-channel rotary transformer, the other can be double-channel rotary transformer, and the two rotary transformers can be double-channel rotary transformer or single-channel rotary transformer. The dial control signal is used for selecting single/double-channel rotation change, rotating the speed ratio and collecting and outputting the angle number.
As shown in fig. 4 and 5, the present shaft angle conversion device adopts a DC power supply to supply power, the DC power supply can range from dc+18v to dc+28v, the DC power supply is input into the present device, in this embodiment, a +24vdc DC power supply is selected, and the DC power supply is converted into +5vdc, +15vdc, -15vdc and AC power 26VAC2000Hz externally provided to the resolver through corresponding power conversion modules (DC/DC module 1 and DC/AC module 1 and 2), and the DC/AC modules 1 and 2 externally provided to the resolver adopt a modularized design, so that the output AC power is changed into 26VAC2600Hz or 36VAC2000Hz and other different exciting power supplies to match different resolvers;
the DC+5V power supply generated in the DC/DC module 1 is provided for a corresponding shaft angle conversion module, the shaft angle conversion module is used for converting the acquired analog angle signals of the rotary transformer into parallel digital quantity signals, the parallel digital quantity signals can be arranged to be suitable for a single-channel rotary transformer or a double-channel rotary transformer, the angle analog signals of the rotary transformer can be converted into 16-19-bit digital signals through the arrangement of the parallel digital quantity signals, the 19-bit angle signals have the highest precision, and the parallel digital quantity signals can be selected according to the needs of users;
the parallel digital signals output by the shaft angle conversion module are transmitted to the CPLD, serial data conversion, data stack storage and the like are carried out in the CPLD, the CPLD is used for encoding the angle digital signals, the CPLD is a chip capable of being programmed on line, different programs are written into the chip through programming software, and the chip can meet the use requirements of different external output interfaces; the DSP controller in the device can receive external dialing signals, convert the corresponding dialing signals into different level signals through programmed software to control single double channels of the shaft angle conversion module and output digital quantity bit numbers, the DSP controller signals can also generate reference clock signals to control functions such as CPLD output coding frequency and the like, and the DSP controller is programmable on line and can change the software according to use requirements to adapt to different user requirements;
according to the change of the use scene of a user, a shaft angle conversion chip (a shaft angle conversion module) or two shaft angle conversion chips can be arranged in the device, so that one rotary transformer or two rotary transformers can be connected; the device is integrally arranged in a metal box, and the metal box adopts a sealing structure design, and the device is connected with a rotary transformer, an external power supply and an external output interface, and all waterproof connectors are adopted when a programming port is connected, so that the device has a rainproof function when being used outdoors;
the device has the advantages that the device has wide adaptability and external interface characteristics of the rotary transformer, and can be used for aiming at the electric characteristics of different rotary transformers, the decoding bit number requirements, the communication baud rate requirements and the like, the level of the device can be raised to +5VDC through the difference of dialing settings, the single-channel selection of a decoding chip of the rotary transformer is adjusted, the decoding output bit number is selected, the communication baud rate is selected, the speed ratio of the rotary transformer is set, related parameters can be sent to a DSP (digital signal processor) controller through a programming port through a command, the same decoding bit number setting as the dialing settings is carried out, the communication baud rate setting, the speed ratio setting, the single-channel setting of the rotary transformer and the hardware setting have priority.
As shown in fig. 6, the software design of the device mainly comprises two parts, namely a CPLD logic control part and a DSP control part, wherein the CPLD writing software converts parallel port data of the rotary transformer decoded by the shaft angle conversion chip into serial digital signals, the serial data signals are transmitted to a synchronous serial port written by the CPLD through software in the CPLD, the synchronous serial port, a network port and a CAN port bus, clock signals generated by a DSP controller program, the frequency of the clock signals is from external hardware setting or software programming setting, and the transmission frequency of the CPLD to an external communication port CAN be controlled by setting different clock signal frequencies. The DSP controller is used for controlling the frequency, so that the CPLD generates transmission frequencies conforming to various external communication ports, and the CPLD is convenient and flexible and has strong system expansibility.
The device has the following technical characteristics: the DC-AC conversion power supply is provided for the rotary transformer, so that the rotary transformer is not required to be provided with rotary alternating current power supply equipment, the equipment quantity is reduced, and the equipment reliability is improved; the alternating current power supply module of the device adopts a modularized design, and can select different alternating current power supply modules according to different rotary transformer requirements so as to adapt to different rotary transformers, and if two rotary transformers are connected, the two rotary transformers can adopt different voltage requirements; the device can set the conversion ratio of a rotary transformer through a dial switch, wherein the dial switch is two 8-bit dial switches, each 8-bit dial switch corresponds to one rotary transformer setting function, the switch is connected to output high voltage +5VDC, the switch is disconnected to low voltage 0VDC, the two 8-bit switches are respectively connected to a DSP digital interface and correspond to 0-15 bits of the DSP digital interface, the speed ratio of a 0-2-bit control rotary transformer 1 is set, the 000 corresponding speed ratio is 8, the 010 corresponding speed ratio is 16, the 011 corresponding speed ratio is 32, the 100 corresponding speed ratio is 64,3-4 bits and is used for controlling the output bit number of the rotary transformer 1, the 00 output angle is 16 bits, the 01 output angle is 17 bits, the 10 output angle is 18 bits, the 11 output angle is 19 bits, the 5-6 bits are used for setting asynchronous communication transmission wave ratio, the 00 corresponds to wave ratio 9600Kbs, the 01 corresponds to the wave ratio 19200Kbs, the 10 corresponds to the wave ratio 38400Kbs, the 11 corresponds to the wave ratio 200Kbs, the 7 corresponds to the rotary single-channel rotary transformer 1 is equal to the rotary transformer, and the rotary transformer is equal to the 1150 single-channel rotary transformer; the other channel is arranged in the same way. The transformation ratio is from 1:8 to 1:64 can be changed according to the requirements of the rotary transformer, and the device can also select whether to access the rotary transformer with a single channel or a double channels through a dial switch; the device can simultaneously meet the simultaneous access decoding conversion of two rotary transformers through the two shaft angle decoding modules, the two decoding channels are mutually independent and work respectively, and the decoded digital angle signals are output to the outside through an external synchronous serial port, an asynchronous serial port, a network port and a can port; the external interfaces of the device adopt synchronous serial ports, asynchronous serial ports, network ports and can ports for external output, and the interfaces for external output are independent and do not influence each other, so that the four-way upper controllers can collect angle signals, one-to-many functions are met, and the expansibility of the product interfaces is improved; furthermore, the baud rate of the asynchronous communication port and the can port can be modified by programming the writing command through software, so that the adaptability to an external interface is improved.
In summary, the flexible and expandable shaft angle digital conversion device of the two groups of embodiments can be compatible with single-channel rotary transformers and multiple rotary transformer transformation ratios; the analog signal of the rotary transformer CAN be converted into a digital quantity signal, and the digital quantity signal is transmitted out through a synchronous serial port, an asynchronous serial port, a network port and a CAN communication port and is provided for acquisition equipment; the exciting power supply required by different rotary transformers can be output, the problems of input signal compatibility and output interface compatibility are solved, the equipment cost is reduced, the debugging time is shortened, the system reliability is improved, and the exciting power supply is worthy of being popularized and used.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A flexible expandable shaft angle digital conversion device, characterized in that: the device comprises at least two shaft angle conversion modules, a digital signal processing module, a microcontroller module, at least one DC/DC module and at least one DC/AC module; the digital signal processing module is a CPLD, and the microcontroller module is a DSP controller;
the shaft angle conversion module is used for converting analog angle signals of the rotary transformer into parallel digital quantity signals;
the digital signal processing module is used for outputting the coded diagonal digital signals;
the microcontroller module is used for receiving external dialing signals, converting the corresponding dialing signals into different level signals to control the single double channels and the output digital quantity bit number of the shaft angle conversion module, and generating a reference clock signal to control the output coding frequency of the CPLD;
the DC/DC module is used for converting an external input direct current power supply into a direct current power supply required by each hardware;
the DC/AC module is used for converting the direct current power supply converted by the DC/DC module into alternating current power supply for the rotary transformer;
the DC/AC module is characterized in that an external input DC power supply is respectively input into the two shaft angle conversion modules and the DC/AC module after the DC/DC module is converted, analog angle signals of the two rotary transformers are respectively input into the two shaft angle conversion modules, the two shaft angle conversion modules are respectively connected with the digital signal processing module, the digital signal processing module is connected with the microcontroller module, the DSP controller is respectively connected with the shaft angle conversion module, one output end of the DC/AC module is connected with the rotary transformers to output an exciting power supply to the DC/AC module, and the other output end of the DC/AC module is connected with the shaft angle conversion module.
2. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: the range of the external input direct current power supply is +18V to +28V, the DC/DC module converts the external input direct current power supply into +5VDC, +15VDC and-15VDC, and the DC/AC module converts the +15VDC and-15VDC into 26VAC or 36VAC excitation power supply.
3. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: the shaft angle conversion module converts an analog angle signal of the rotary transformer into a digital quantity signal with 16-19 parallel bits.
4. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: and the CPLD encodes the angle digital signal according to different use requirements of the external output interface.
5. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: the DSP controller is provided with a plurality of output interfaces, namely a serial port, a network port and a CAN port, wherein the serial port is divided into an asynchronous serial port and a synchronous serial port.
6. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: the shaft angle digital conversion device also comprises a power input interface and a rotary transformer input interface, wherein an external input direct current power supply is input into the DC/DC module through the power input interface, and analog angle signals of all rotary transformers are respectively input into all shaft angle conversion modules through the rotary transformer input interface.
7. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: and the two shaft angle conversion modules respectively collect and encode the angles of the two rotary transformers at the same time.
8. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: and the two shaft angle conversion modules only acquire and encode one rotary transformer angle value.
9. A flexible expandable shaft angle digital conversion device in accordance with claim 1, wherein: the DSP controller is also provided with a hardware setting port, corresponding hardware bits are set through the hardware setting port, and the level of the hardware setting port is pulled up to +5VDC, so that the working mode selection, the decoding output bit number selection and the communication baud rate selection of the shaft angle conversion module are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210168292.4A CN114543845B (en) | 2022-02-23 | 2022-02-23 | Flexible expandable shaft angle digital conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210168292.4A CN114543845B (en) | 2022-02-23 | 2022-02-23 | Flexible expandable shaft angle digital conversion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114543845A CN114543845A (en) | 2022-05-27 |
| CN114543845B true CN114543845B (en) | 2023-07-11 |
Family
ID=81676665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210168292.4A Active CN114543845B (en) | 2022-02-23 | 2022-02-23 | Flexible expandable shaft angle digital conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114543845B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162798A (en) * | 1991-06-17 | 1992-11-10 | Pacific Scientific Company | Resolver to digital converter |
| JP2014020813A (en) * | 2012-07-13 | 2014-02-03 | Aisan Ind Co Ltd | Angle sensor |
| CN113970679A (en) * | 2021-10-21 | 2022-01-25 | 连云港杰瑞电子有限公司 | Automatic debugging table and debugging method for angular precision of shaft angle-digital converter |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001277128A1 (en) * | 2000-07-24 | 2002-02-05 | Hamilton Sundstrand Corporation | Apparatus for ac-to-dc conversion which provides a signed dc signal |
| DE102004058743A1 (en) * | 2004-12-06 | 2006-06-14 | Epcos Ag | Piezoelectric transformer and method for its production |
| CN100390496C (en) * | 2006-02-20 | 2008-05-28 | 连云港杰瑞电子有限公司 | Double speed angle-digital converter |
| CN102589584B (en) * | 2012-02-15 | 2014-09-10 | 连云港杰瑞电子有限公司 | Method for converting high-precision single-chip digital signal into shaft angle signal |
| CN102661754B (en) * | 2012-05-09 | 2014-06-25 | 合肥工业大学 | Digital converter for rotary transformer |
| JP5874688B2 (en) * | 2013-06-05 | 2016-03-02 | 株式会社デンソー | Control device |
| CN103475374A (en) * | 2013-08-09 | 2013-12-25 | 浙江吉利汽车研究院有限公司 | Rotary transformer decoding deck and decoding method thereof |
| CN104501841B (en) * | 2014-11-18 | 2017-05-31 | 连云港杰瑞电子有限公司 | Single-ring absolute type rotary encoder based on brushless multi-polar rotation transformer |
| CN205754036U (en) * | 2016-05-10 | 2016-11-30 | 特变电工西安电气科技有限公司 | A kind of three-phase H bridge zero-sequence component suppression system |
| CN108106642B (en) * | 2017-12-20 | 2019-12-27 | 苏州闻颂智能科技有限公司 | Hall element analog front-end circuit |
| CN108955731A (en) * | 2018-08-14 | 2018-12-07 | 中国电子科技集团公司第三十八研究所 | A kind of light load microwave signal Larger Dynamic broadband demodulator system based on lock variable phase frequency synthesizer |
| CN110031025B (en) * | 2019-04-19 | 2024-05-03 | 武汉蔚铭自控科技有限公司 | Digital output split charging rotary transformer |
| CN112729100A (en) * | 2020-12-04 | 2021-04-30 | 北京信息科技大学 | Rotary variable angle sensor |
-
2022
- 2022-02-23 CN CN202210168292.4A patent/CN114543845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162798A (en) * | 1991-06-17 | 1992-11-10 | Pacific Scientific Company | Resolver to digital converter |
| JP2014020813A (en) * | 2012-07-13 | 2014-02-03 | Aisan Ind Co Ltd | Angle sensor |
| CN113970679A (en) * | 2021-10-21 | 2022-01-25 | 连云港杰瑞电子有限公司 | Automatic debugging table and debugging method for angular precision of shaft angle-digital converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114543845A (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114543845B (en) | Flexible expandable shaft angle digital conversion device | |
| CN111431352A (en) | ECM motor compatible with various universal interfaces, heating ventilation air conditioning HVAC system and signal conversion method | |
| CN202111712U (en) | Dual-computer redundancy system adopting IRIG-B format time code in timing system | |
| WO2014117545A1 (en) | Interface signal conversion daughter circuit board for electronic commutation motor | |
| CN201918941U (en) | Daughter circuit board for conversion of interface signals of electronic commutation motor | |
| CN110708226B (en) | Vehicle-mounted bus communication system based on FlexRay | |
| US20130212310A1 (en) | Interface for modular input/output and data acquisition systems | |
| CN103490797A (en) | Intelligent communication system based on power lines | |
| CN207926615U (en) | Dispatching desk and scheduling system | |
| CN114583895B (en) | BLDC motor and electrical equipment with networking communication function | |
| CN210444251U (en) | Encoder compatible circuit and system | |
| WO2022088860A1 (en) | System compatible circuit, uninterruptible power supply and system compatible method | |
| US11686317B2 (en) | Long-distance speed control system for brushless DC motor of fan | |
| CN210225286U (en) | BLDC motor interface sub-circuit board, motor controller and DC brushless motor | |
| CN112361877B (en) | General control module of gun alternating current servo driver | |
| CN218238868U (en) | Excitation and rotary transformer resolving circuit | |
| CN221042892U (en) | Digital bus communication equipment | |
| CN220292025U (en) | Carrier modulation-based low-voltage power line transmitting device and master control terminal equipment | |
| CN201039174Y (en) | Satellite search control circuit for satellite communication search control device | |
| CN219592239U (en) | Low-voltage servo driver and servo driving system | |
| CN213715722U (en) | Encoder multiplex line | |
| CN218547340U (en) | Communication control system | |
| CN217880029U (en) | Variable-current control system and wind generating set | |
| CN104750093A (en) | Labview based RS485 bus structure DCS system I/O slave station testing system | |
| CN211264137U (en) | Modularization air conditioner electrical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |