CN110442055A - A kind of display control module of programme-controlled gain signal amplifier - Google Patents
A kind of display control module of programme-controlled gain signal amplifier Download PDFInfo
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- CN110442055A CN110442055A CN201910682709.7A CN201910682709A CN110442055A CN 110442055 A CN110442055 A CN 110442055A CN 201910682709 A CN201910682709 A CN 201910682709A CN 110442055 A CN110442055 A CN 110442055A
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- circuit
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
Abstract
The present invention relates to a kind of display control modules of programme-controlled gain signal amplifier, including using S3C2416 processor as the minimum system circuit of control core, display screen, with 0 circuit of serial ports of minimum system circuit connection, 2 circuit of serial ports, 3 circuit of serial ports, key, SD card, with the network port circuit of functions of indicator light, further include for providing the power circuit of different voltages for different components.Compared with prior art, this module has the characteristics that low-power consumption, high-performance and low cost, small in volume provide complete system external interface, can reduce system additional assemblies and cost to the full extent；In addition, also having, the response time is fast, enormously simplify development process, the compression development cycle, is easily modified and safeguards and substantially increase real-time；And there is its good versatility and scalability, reduce the duplication of labour of secondary development.
Description
Technical field
The present invention relates to programme-controlled gain signal amplifier field, the aobvious control mould of specially a kind of programme-controlled gain signal amplifier
Block.
Background technique
During using circuit amplifier, it is often desirable to which circuit gain can adjust to obtain the output letter of different amplitudes
Number, to ensure the accuracy of data sampling.Because the amplification factor of gain-programmed amplifier can be adjusted by program setting, because
This program controlled automatic gain signal amplifier has important application in many fields such as TT&C system, intelligent instrumentation.
For example, the 15-18 pages of " the computer programming technology and maintenance " periodical published in November, 2018 discloses a kind of base
In the gain-programmed amplifier design method of STC89C51 single-chip microcontroller, parameter is obtained by scanning key wherein also briefly describing
Setting, and the aobvious control task completing user and being operated is shown by liquid crystal display.But scheme introduction is excessively simple, fails
It discloses the key technologies such as keypress function, liquid crystal display type and realizes details, and setting unit is amplified in display control section and gain
It concentrates on one piece of 51 series monolithic, and is to scan the mode of key to obtain parameter setting, it is low to certainly exist real-time, can expand
The disadvantages of malleability is weak, and maintainability is poor.
For another example, pages 12,14 for " Electronic Testing " periodical that in January, 2017 publishes disclose a kind of based on STC89C52 monolithic
Machine is main control chip, by scanning key in the aobvious prosecutor case of 12864 screen displays.It is total that 12864 screens belong to microcontroller (MCU)
Line interface screen, display speed are a bigger bottlenecks, and the MCU of most users is as 51 kernels or stm32
ARM7 kernel drives the screen speed of bus interface less desirable.Other than speed bottle-neck, the display at interface is driven for big
Relatively difficult for most developers, the screen of bus-type interface only provides the operation of dot matrix, any display content such as picture, character
It is all by modulus data, corresponding position one by one shows dot matrix on the screen.It realizes again on this basis man-machine
The logic at interface, workload are very big.Under normal conditions, for example, do QWERTY keyboard may developer must expend several weeks
Time make.And later maintenance modification also can be quite painstaking.
Summary of the invention
In order to solve the above-mentioned technical problem, the invention proposes a kind of display control modules of programme-controlled gain signal amplifier.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of display control module of programme-controlled gain signal amplifier, including using S3C2416 processor as the minimum of control core
Circuit system, display screen, with 0 circuit of serial ports of minimum system circuit connection, 2 circuit of serial ports, 3 circuit of serial ports, key, SD card,
Network port circuit with functions of indicator light further includes for providing the power circuit of different voltages for different components；Wherein:
0 circuit of serial ports is connect for controlling display screen with display screen；
2 circuit of serial ports is connect for monitoring data with external computer；
3 circuit of serial ports is connect for interactively communicating data with outer signals amplification module；
Key is to be used for amplifier sendaisle switch order and setting gain amplification factor parameter；
SD card is to be used for starting module；
Network port circuit is connect to be used for module loading program with external computer；
Power circuit has 5V the and 3.3V voltage used for above-mentioned device.
Further, the minimum system circuit includes using ARM9 as the S3C2416 processor of kernel, for storing program
And the work of data is deposited, is turned for the FLASH of curing module program code, for network serial signal and processor parallel signal
The network data conversion chip changed.
Further, the minimum system circuit further includes being connect with power circuit for 3.3V voltage to be converted into 1.2V
The power conversion module used with 3.3V for minimum system circuit.
Further, the S3C2416 processor is connected with the reset electricity that reset signal is generated by pressing patch button
Road.
Further, the display screen be equipped with " state ", " decaying ", " power ", " interior temperature ", " temperature one ", " warm two ",
" failure ", " local/remote " show content.
Further, the key include " local/remote switching ", " setting ", " confirmation ", " cancellation ", "upper", "lower",
"left", "right" key, and all have external interrupt function.
Further, the power circuit, which is furnished with, is used to indicate light emitting diode whether power supply is opened and logical for controlling
Disconnected locking press button.
The beneficial effects of the present invention are:
Compared with prior art, this module has the characteristics that low-power consumption, high-performance and low cost, small in volume mention
For complete system external interface, system additional assemblies and cost can be reduced to the full extent；In addition, when also there is response
Between it is fast, enormously simplify development process, the compression development cycle, be easily modified and safeguard and substantially increase real-time；And have
There are its good versatility and scalability, reduces the duplication of labour of secondary development.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is modular structure block diagram in the present invention；
Fig. 2 is S3C2416 minimum system block diagram in the present invention；
Fig. 3 is power circuit schematic diagram in the present invention；
Fig. 4 is reset circuit schematic diagram in the present invention；
Fig. 5 is serial port circuit schematic diagram in the present invention；
Fig. 6 is network port circuit schematic diagram in the present invention；
Fig. 7 is display screen interface schematic diagram in the present invention；
Fig. 8 is software flow schematic diagram in the present invention；
Fig. 9 is interrupt processing flow diagram in the present invention；
Figure 10 is that serial data handles function flow diagram in the present invention；
Figure 11 is to disappear to tremble program circuit schematic diagram in the present invention；
Figure 12 is that program circuit schematic diagram is flashed in the present invention；
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
It closes attached drawing and the present invention is further described in embodiment.
As shown in Figures 1 to 12, a kind of display control module of programme-controlled gain signal amplifier, including hardware design and software are set
Meter.Wherein hardware as shown in Figure 1, include using S3C2416 processor as the minimum system circuit of control core, display screen, with most
0 circuit of serial ports of mini system circuit connection, 2 circuit of serial ports, 3 circuit of serial ports, key, SD card, the network interface with functions of indicator light
Circuit further includes for providing the power circuit of different voltages for different components.
Wherein, the SD card is to be used for starting module；As shown in fig. 6, the network port circuit connect with external computer with
For to module loading program；Specifically, the network port circuit uses standard RJ-45 interface.
As shown in figure 3, the power circuit is inputted using 5V, pass through the locking press button for controlling on-off
Control on-off is carried out, while power supply is carried out using AMS1117-3.3 and is converted to 3.3V voltage, the power supply described in this way
Circuit will have 5V the and 3.3V voltage used for above-mentioned device, in addition, the power circuit is opened equipped with being used to indicate power supply
Light emitting diode whether logical.
As shown in Fig. 2, the minimum system circuit includes using ARM9 as the S3C2416 processor of kernel, for storing journey
The work of sequence and data deposits, for the FLASH of curing module program code, for network serial signal and processor parallel signal
The network data conversion chip of conversion.Specifically, the work is deposited using K4T51163QJDDR2SDRAM, capacity 32M × 16bit；
The FLASH uses K9GAG08, capacity 512M × 8bit；The network data conversion chip uses DM9000 network protocol core
Piece.
As shown in figure 4, the S3C2416 processor is connected with the reset electricity for generating reset signal by pressing patch button
Road, the reset circuit are designed around MAX811T reset chip, reset signal are generated by pressing patch button, by the signal
It is connected with the reseting port on S3C2416 processor.
In addition, the minimum system circuit further include connect with power circuit for by 3.3V voltage be converted into 1.2V and
The power conversion module that 3.3V uses for minimum system circuit.Specifically, the power conversion module uses XC9216A33/
13CM module, wherein the voltage of 1.2V is processor core power supply, and the voltage of 3.3V is DDR2 power supply.
As shown in fig. 7, the display screen selects TCJ4832K035_011 serial ports display screen, this display screen is just in equipment
It after packaged bottom function, is interacted by serial ports (USART232) with processor, processor can be sent out by serial ports at any time
It send instruction notification equipment to switch some page or changes the attribute of some component, display screen can also be notified by serial ports at any time
The state of the current page of processor or component；It include " state " on the display screen, for showing the working condition of power amplifier host,
Such as: power amplifier is opened；" decaying ", for showing the actual gain value of power amplifier host, such as: 1.00dB；" power ", for showing
The real-time working power of power amplifier host, such as: < 20dBm；" interior temperature ", for showing the operating temperature of power amplifier host, such as :+
028.5℃；" temperature one ", the operating temperature of the first power amplifier for showing power amplifier host, such as :+058.5 DEG C；" temperature
Two ", the operating temperature of the second power amplifier for showing power amplifier host, such as :+058.5 DEG C；" failure ", for showing
The malfunction of power amplifier host, when fault-free, show black, are displayed in red in the event of failure, and indicate fault type, such as: it is excessively anti-
It penetrates；" local/remote " is used to indicate present control mode state, is set as showing green " local " printed words when local in the frame,
" long-range " printed words are displayed in blue when being set as long-range in the frame.
As shown in figure 5,0 circuit of serial ports is connect for controlling display screen with display screen；2 circuit of serial ports and external computer
Connection is to be used for monitoring data；3 circuit of serial ports is connect for interactively communicating data with outer signals amplification module；Specifically,
0 circuit of serial ports uses Transistor-Transistor Logic level, and 2 circuit of serial ports, 3 circuit of serial ports use RS-232 level, it is therefore desirable to design string
Mouth level shifting circuit, the serial port level chance-over circuit, which uses, has twin-channel MAX232AESE chip as conversion core
Piece, wherein for the ease of debugging 2 monitoring port of serial ports is connected to the 2 of DB9 connector, 3 ends, can be used universal serial port line into
The communication of row and monitoring computer.
Key is to be used for amplifier sendaisle switch order and setting gain amplification factor parameter.Specifically, this mould
Work design has eight keys in block, respectively " local/remote switching ", " setting ", " confirmation ", " cancellation ", "upper", "lower",
"left", "right" key, this eight keys are connected with eight I/O ports on S3C2416 processor respectively, and use its multiplexing
External interrupt function is as shown in the table the corresponding relationship of eight keys and I/O port and external interrupt number:
Software design
Software operational process in this module as shown in figure 8,
The first step completes the initialization to S3C2416 processor.
Specifically, the S3C2416 processor initialization includes timer initialization, initialization of (a) serial ports, key initialization
It is initialized with interrupting, can smoothly to apply these resources in program below.
(1) timer initializes
This module is used to generate the interval time of screen data flashing using timer 0, is designed as generating every 0.5 second
Timer interruption, the initialization of timer need to configure following register；
TCFG0 register (TIMERCONFIGURATIONREGISTER0) is responsible for the pre- frequency dividing of timer, wherein timer
0 pre- frequency dividing setting is controlled by the position [7:0] of TCFG0, so setting 99 for TCFG0 [7:0], passes through pre- scaling down processing in this way
Clock frequency are as follows: PCLK/ (99+1)；
TCFG1 register (TIMERCONFIGURATIONREGISTER0) can divide obtained clock further progress 2
Frequently, 4 frequency dividing, 8 frequency dividing and 16 frequency dividing, wherein timer 0 by the position [3:0] TCFG1 control, be set to 0x03 here, i.e., into
Row 16 divides；
TCFG1 register (TIMER0COUNTBUFFERREGISTER) saves the initial count value of timer, because every
An Interruption is generated within 0.5 second, therefore count value here will be set as the corresponding value of 0.5 second timer, in summary
Frequency dividing setting, the value are set as PCLK/100/16/2；
TCON register (TIMERCONTROL) is timed the control of device, wherein the position [3:0] control timer 0, first
TCON [1], which is set 1, allows the value of TCNTB0 to be fitted into internal register TCNTB0, then by the position clear 0, finally by TCON [3]
1 is set with TCON [0], is used to opening timing device 0, while being arranged when the counting of timer 0 reaches 0, it will be in the value loading of TCNTB0
In portion register TCNTB0, it can thus load automatically when interrupting and arriving and be counted next time.
(2) initialization of (a) serial ports
This module also uses two serial ports in addition to serial ports console (use serial ports 2), is serial ports 0 and serial ports 3 respectively,
Middle serial ports 0 is used for the control of display screen, serial ports 3 for carrying out data transmission with functional module, the initialization of serial ports 2 by
Uboot is automatically performed, and therefore, is illustrated to the initialization procedure of serial ports 0 and serial ports 3.
It first having to configure the I/O port of serial ports 0 and the corresponding multiplexing of serial ports 3, serial ports 0 uses GPH1 and GPH0,
Serial ports 3 uses GPH7 and GPH6, respectively by the 3:0 of GPHCON register] and the position [15:12] control, by GPHCON register
[3:0] and [15:12], which is respectively set to 0xa, makes GPH1, GPH0, GPH7, GPH6 be multiplexed with TXD0, RXD0, TXD3, RXD3.So
[3:0] of GPHPU register and [15:12] is respectively configured as 0xa afterwards, sets pull-mode on inside for the above pin.
After the multiplexing setting for completing I/O port, the attribute of serial ports is set.Transmission mode is set first, and corresponding is
UCLON0/3 register (UARTLINECONTROL), is set to 0x03, makes transmission mode 8N1 (8 numbers of serial ports 0/3
According to position, no parity check position, 1 stop position)；The control mode of serial ports is set, and corresponding register is UCON0/3 register (UART
CONTROL), it is set to 0x05, makes 0/3 clock source PCLK of serial ports, with interrupt mode/inquiry mode from receiving buffer area
Middle reading data；0x00 is set by UFCON0/3 register (UARTFIFO CONTROL), indicates not using FIFO；It will
UMCON0 register (UARTMODEM CONTROL) is set as 0x00, indicates not using flow control, notices that serial ports 3 does not flow
Control function is measured, therefore without corresponding UMCON3 register.It is finally the setting of baud rate, UBRDIV0/3 deposit is gone
(UARTBAUDRATEDIVISOR) value is set as (PCLK/ baud rate/16-1), the baud rate used herein for
115200bit/s。
(3) key initializes
This module altogether used 8 keys, as previously mentioned, respectively GPF0, GPF2, GPF6, GPF7, GPG1, GPG3,
GPG4, GPG5 are pulled upward to 3.3V power supply in key circuit, become 0V when depressed, therefore are all set to outer
Portion's interrupt mode, and failing edge is selected to trigger.It needs pin used corresponding in GPFCON register and GPGCON register
Position (each pin accounts for two) be configured to 0x3 and select pin for external interrupt mode, while by EINTCON0 register and
In EINTCON1 register the corresponding position of pin (each pin Zhan Siwei) be configured to 0x2 be arranged its for failing edge triggering.
(4) initialization is interrupted
The shielding bit clear initialized be exactly by used each interruption and oneself the corresponding register of interruption is interrupted,
Including by INTMSK (INTERRUPTMASK) interrupt mask register the 10th timer 0 controlled interruption, INTMSK register
The serial ports 3 of 18th control interrupt (serial ports 3, which uses, receives interrupt INT SUBMSK [24], and interrupt function is not used in serial ports 0) with
And external interrupt EINT0, EINT2, EINT6, EINT7, EINT9, EINT11, EINT12, EINT13, in the interruption of S3C2416
The the 0th, 2,4,5, i.e. EINT0, EINT2, EINT4-7 (control EINT6, EINT7) are respectively corresponded in system INTMSK register
With EINT8-15 (control EINT9, EINT11, EINT12, EINT13).
Second step completes display screen initialization
The effect of display screen initialization is initialization display screen picture information, is allowed to consistent with functional module default conditions,
In order to avoid user judges the working condition of functional module by accident, particularly as being to send to instruct to display screen by serial ports 0, control to display screen
Part sends initial value and priming color.
Third step after the completion of initialization, sends the initial shape that serial data makes its display meet functional module to display screen
Then state inquires flag bit；Whether inquiry receives function module data, and received function module data is passed through string if having
Mouth, which is sent on display screen, to be shown, if directly whether inquiry receives key flag bit without if, if shape will be arranged by having
State mark simultaneously carries out related setting, if directly whether inquiry has flashing interrupt flag bit without if, if controlling on display screen
Control carry out flashing and show, directly terminate if without if；In addition, being polled to above-mentioned each flag bit；Wherein, above-mentioned mark
Position and the interruption of corresponding serial ports, external interrupt and timer interruption tight association, when an interrupt occurs, by interrupt processing meeting
Generate corresponding flag bit.
As shown in figure 9, the value of INTOFFSET is assigned to oft first, judge whether oft is equal to 0, if then setting the mark of key 0
Will, if not then judging whether oft is equal to 2, if the mark of key 2 is then set, if not then judging whether oft is equal to 4, if then
Judge whether EINTPEND [6] is equal to 1, if then setting the mark of key 6, if not then judge whether EINTPEND [7] is equal to 1,
If then setting the mark of key 7；If oft not equal to judging whether oft is equal to 5 if 4, if judge EINTPEND [9] whether etc.
In 1, if then setting the mark of key 9, if not then judge whether EINTPEND [11] is equal to 1, if then setting the mark of key 11, if
It is not to judge whether EINTPEND [12] is equal to 1, if the mark of key 12 is then set, if not then judging that EINTPEND [13] is
It is no to be equal to 1, if then setting the mark of key 13；Judge whether oft is equal to 10 if oft is not equal to 5, if setting in timer 0
Disconnected mark；If not then whether oft is equal to 18, if then carrying out serial data processing；If not then then judge oft whether etc.
In 4, if then removing external interrupt 6/7；If not then then judging whether oft is equal to 5, if then removing external interrupt 9/
11/12/13；If not then then judging whether oft is equal to 18, interrupted if then removing serial ports 3 and receiving；If not then removing
SRCPND register terminates after then removing INTPND register.
Wherein " judge whether oft is equal to 0 " to " if not then whether oft is equal to 18, if then carrying out at serial data
The part process of reason " is to judge interrupt source and carry out corresponding operating；" if not then then judging whether oft is equal to 4 " is to " then
Remove INTPND register after terminate " part process be remove interrupt.
Function process is handled for serial data in Fig. 9 as shown in Figure 10, at this moment therefore from Fig. 9 it can be found that judging
Most operation is the mark for marking corresponding source after interrupt source, and serial data receives to interrupt and needs further to be sentenced
Disconnected, it is valid data that the data for only meeting serial ports Frame Protocol, which are just considered incoming,.
In addition, as shown in figure 11, being shaken to eliminate keyboard mechanical in software design procedure, preventing the mistake therefore generated
Movement, the key for devising software delay, which disappears, trembles program.
Detailed process is respective keys IO to be changed to input pattern, 10 milliseconds or so of delay is examined again when setting 1 by key flag
The I/O port state is surveyed, thinks that this key is effectively, corresponding keypress function mark to be arranged, finally if being still low level
The I/O port is reverted into interrupt mode.
It as shown in figure 12, is the flashing program in this module.When display control module is in parameter setting mode, it is arranged in area
The region that is set needs to flash display to indicate that this part is being set, the function by 0 implement of interruption function of timer, every
0.5 second timer 0 generates primary interruption, interrupts associated counter after arriving and adds 1, and program judges whether the counter is odd at this time
Number, then pass through if it is odd number serial ports 0 to display screen send " vist0,1 " allows setting area to show, on the contrary it is then pass through serial ports 0 to
" vist0,0 ", allow setting area to disappear, and have reached the effect of setting area flashing in 0.5 second for display screen transmission.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (7)
1. a kind of display control module of programme-controlled gain signal amplifier, it is characterised in that: including being control core with S3C2416 processor
The minimum system circuit of the heart, display screen, with 0 circuit of serial ports of minimum system circuit connection, 2 circuit of serial ports, 3 circuit of serial ports, press
Key, SD card, the network port circuit with functions of indicator light further include for providing the power circuit of different voltages for different components；
Wherein:
0 circuit of serial ports is connect for controlling display screen with display screen；
2 circuit of serial ports is connect for monitoring data with external computer；
3 circuit of serial ports is connect for interactively communicating data with outer signals amplification module；
Key is to be used for amplifier sendaisle switch order and setting gain amplification factor parameter；
SD card is to be used for starting module；
Network port circuit is connect to be used for module loading program with external computer；
Power circuit has 5V the and 3.3V voltage used for above-mentioned device.
2. a kind of display control module of programme-controlled gain signal amplifier according to claim 1, it is characterised in that: the minimum
Circuit system includes being deposited using ARM9 as the S3C2416 processor of kernel, for storing the work of program and data, for curing module
The FLASH of program code, for the network data conversion chip of network serial signal and the conversion of processor parallel signal.
3. a kind of display control module of programme-controlled gain signal amplifier according to claim 2, it is characterised in that: the minimum
Circuit system further includes being connect with power circuit for 3.3V voltage to be converted into 1.2V and 3.3V so that minimum system circuit makes
Power conversion module.
4. a kind of display control module of programme-controlled gain signal amplifier according to claim 2, it is characterised in that: described
S3C2416 processor is connected with the reset circuit that reset signal is generated by pressing patch button.
5. a kind of display control module of programme-controlled gain signal amplifier according to claim 1, it is characterised in that: the display
Screen is equipped with " state ", " decaying ", " power ", " interior temperature ", " temperature one ", " temperature two ", " failure ", " local/remote " display content.
6. a kind of display control module of programme-controlled gain signal amplifier according to claim 1, it is characterised in that: the key
Including " local/remote switching ", " setting ", " confirmation ", " cancellation ", "upper", "lower", "left", "right" key, and all have outside
Interrupt function.
7. a kind of display control module of programme-controlled gain signal amplifier according to claim 1, it is characterised in that: the power supply
Circuit, which is furnished with, is used to indicate light emitting diode whether power supply is opened and the locking press button for controlling on-off.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682709.7A CN110442055A (en) | 2019-07-26 | 2019-07-26 | A kind of display control module of programme-controlled gain signal amplifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910682709.7A CN110442055A (en) | 2019-07-26 | 2019-07-26 | A kind of display control module of programme-controlled gain signal amplifier |
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| US20080198148A1 (en) * | 2007-02-16 | 2008-08-21 | Renesas Technology Corp. | Semiconductor integrated circuit device and data processor system |
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| CN105137859A (en) * | 2015-07-30 | 2015-12-09 | 北京高立开元创新科技股份有限公司 | Remote wireless collection controller |
| CN205721215U (en) * | 2016-04-26 | 2016-11-23 | 成都克瑞斯科技有限公司 | Portable ultrasonic flaw detector |
| CN208971527U (en) * | 2018-09-29 | 2019-06-11 | 深圳市北海轨道交通技术有限公司 | A kind of digital broadcasting system on train |
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2019
- 2019-07-26 CN CN201910682709.7A patent/CN110442055A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080198148A1 (en) * | 2007-02-16 | 2008-08-21 | Renesas Technology Corp. | Semiconductor integrated circuit device and data processor system |
| CN103389447A (en) * | 2013-07-31 | 2013-11-13 | 成都电业局双流供电局 | Non-contact ultraviolet pulse discharge monitoring device |
| CN105137859A (en) * | 2015-07-30 | 2015-12-09 | 北京高立开元创新科技股份有限公司 | Remote wireless collection controller |
| CN205721215U (en) * | 2016-04-26 | 2016-11-23 | 成都克瑞斯科技有限公司 | Portable ultrasonic flaw detector |
| CN208971527U (en) * | 2018-09-29 | 2019-06-11 | 深圳市北海轨道交通技术有限公司 | A kind of digital broadcasting system on train |
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Application publication date: 20191112 |
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| RJ01 | Rejection of invention patent application after publication |