CN107610517A - A kind of configurable parking space detector and its system based on CMC chips - Google Patents
A kind of configurable parking space detector and its system based on CMC chips Download PDFInfo
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- CN107610517A CN107610517A CN201710919548.XA CN201710919548A CN107610517A CN 107610517 A CN107610517 A CN 107610517A CN 201710919548 A CN201710919548 A CN 201710919548A CN 107610517 A CN107610517 A CN 107610517A
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Abstract
The invention discloses a kind of configurable parking space detector based on CMC chips, including CMC chips and the radio communication circuit, ethernet circuit, ultrasound detection circuit, indicator lamp, clock electric charge and the reset circuit that are connected respectively with CMC chips；CMC chips, for the logic function routine call functional module according to storage；Radio communication circuit, for the wireless smart devices radio communication with being designed based on CMC chips；Ethernet circuit, it is connected with CMC chips, for being connected with central configuration monitor；Ultrasound detection circuit, parking stall idle condition is detected for launching with received ultrasonic signal；Indicator lamp, for indicating parking stall idle condition；Clock circuit, for providing clock signal to CMC chips；Reset circuit, make CMC chip normal operations for providing reset signal and starting watchdog reset circuit.The present invention have the characteristics that wiring less, construction is simple, reliability height, networking it is convenient.
Description
Technical field
The present invention relates to parking stall measure, more particularly to a kind of configurable parking space detector based on CMC chips and its it is
System.
Background technology
Parking space detector in the market uses wire by institute mostly to composition multiple spot parking space detector district system
Some parking space detectors are concatenated together, and the raw materials consumption such as this networking mode installation period length, cable is more, construction complexity
It is larger, construction cost is high, circuit is fragile, maintenance cost is high.
Existing parking space detector blindly pursues high and new technology, causes installation cost high, can not suit measures to local conditions.For example it is based on regarding
Frequency collection, the parking space detector of 3G network are suitable for application in places such as the dark, basements of signal difference of light.
The content of the invention
To solve above-mentioned technical problem, the present invention proposes a kind of configurable parking stall measure based on CMC chips
Device and its system.
The technical solution adopted by the present invention is：
A kind of configurable parking space detector based on CMC chips, including：
CMC chips, for the logic function routine call functional module according to storage；
Radio communication circuit, be connected with the CMC chips, for based on the wireless smart devices that CMC chips design without
Line communicates；
Ethernet circuit, it is connected with the CMC chips, for being connected with the central configuration monitor；
Ultrasound detection circuit, it is connected with the CMC chips, parking stall sky is detected for launching with received ultrasonic signal
Not busy state；
Indicator lamp, it is connected with the CMC chips, for indicating parking stall idle condition；
Clock circuit, it is connected with the CMC chips, for providing clock signal to the CMC chips；
Reset circuit, be connected with the CMC chips, for reset signal is provided and start watchdog reset circuit make it is described
CMC chip normal operations.
Preferably, the radio communication circuit transmits data using 2.4G wireless networks.
Preferably, ultrasound detection circuit described in the pulsed drive of the CMC chips output 40kHz sends ultrasonic wave letter
Number, and the ultrasonic signal received according to the ultrasound detection circuit is identified, handled, and judges parking stall idle condition.
Preferably, the ethernet circuit includes binary channels ethernet physical layer chip, Ethernet isolating transformer and connect
Mouthful, the CMC chips are realized using ethernet controller on the piece of its own by the binary channels ethernet physical layer chip
Ethernet feature；The binary channels ethernet physical layer chip by the Ethernet isolating transformer and the interface realize with
External world's communication.
Preferably, the radio communication circuit includes NRF24L01 chips, the NRF24L01 chips and the CMC chips
Communicated using spi bus.
A kind of configurable wireless vehicle position detecting system based on CMC chips, including parking space detector described above, in
Entreat configuration monitoring device and the wireless smart devices based on the design of CMC chips；Each parking space detector is separately mounted to one
On parking stall, for detecting the parking information of parking stall；Radio communication is realized between the adjacent parking space detector, so as to final real
Now all communication between the parking space detector；The central configuration monitor is realized with one of them described parking space detector
Ethernet connects, to monitor the parking information of whole parking stalls；The wireless smart devices and any one of parking stall measure
Device radio transmitting information, and then realize and communicated with the central configuration monitor.
Compared with prior art, the advantageous effects of the technical solution adopted by the present invention are：
Parking space detector can use as an intermediate node while parking space information is detected, collect parking space information
Directly communicated by Ethernet with central configuration monitor, without installing intermediate node again；
The present invention possesses wireless Internet function, can set up WLAN, the network supports data congestion control and logical
Road frequency modulation, improve the reliability of system；
Other wireless smart devices based on the design of CMC chips also can be sent or be connect by the wireless network of parking space detector
Collect mail and cease, and communicated by the Ethernet of parking space detector with central configuration monitor；
The present invention possesses configuration function, can carry out programming and calling function block to parking stall by ST language and ladder diagram
Detector carries out address configuration and function setting；
The present invention possesses 2.4G wireless networkings and wired ethernet communication function.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
Fig. 1 is a kind of configurable parking space detector block diagram based on CMC chips of the present invention；
Fig. 2 is the transmitting ultrasonic signal circuit part of the ultrasound detection circuit of the present invention；
Fig. 3 is the received ultrasonic signal circuit part of the ultrasound detection circuit of the present invention；
Fig. 4 is binary channels ethernet physical layer chip circuit part and the ethernet circuit of the ethernet circuit of the present invention
Interface circuitry portions；
Fig. 5 is the CMC-alpha chip circuits part of the ethernet circuit of the present invention；
Fig. 6 is the radio communication circuit of the present invention；
Fig. 7 is the serial ports programming circuit of the present invention；
Fig. 8 is a kind of configurable wireless vehicle position detecting system schematic diagram based on CMC chips of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, each reality below in conjunction with accompanying drawing to the present invention
The mode of applying is explained in detail.
Configuration (Configure) is meant that " configuration ", " setting ", " setting " etc. look like, and refers to that user " is taken by similar
The plain mode of building blocks " completes the software function required for oneself, without writing computer program, that is, it is so-called
" configuration ".
Monitor (Supervisory Control), i.e. " monitoring and control ", refer to set automation by Computer signal
Standby or process is monitored, controlled and managed.
As shown in figure 1, a kind of configurable parking space detector based on CMC chips, including：
CMC chips, for the logic function routine call functional module according to storage；
Radio communication circuit, it is connected with CMC chips, for the wireless smart devices channel radio with being designed based on CMC chips
Letter；
Ethernet circuit, it is connected with CMC chips, for being connected with central configuration monitor；
Ultrasound detection circuit, it is connected with CMC chips, parking stall free time shape is detected for launching with received ultrasonic signal
State；
Indicator lamp, it is connected with CMC chips, for indicating parking stall idle condition；
Clock circuit, it is connected with CMC chips, for providing clock signal to CMC chips；
Reset circuit, it is connected with CMC chips, makes CMC chips for providing reset signal and starting watchdog reset circuit
Normal operation.
As shown in Figures 2 and 3, ultrasound detection circuit is mainly used in completing parking stall measure function, the DO pins of CMC chips
Output 40kHz pulsed drive ultrasound detection circuit sends ultrasonic signal, and by the DI pins of CMC chips to ultrasonic wave
Detection electric circuit inspection to ultrasonic signal be identified, handle, judge parking space information.The transmitting ultrasound of ultrasound detection circuit
Ripple signal directly drives relay to realize by CMC pins by triode.Point detection signal is provided with ultrasound detection circuit
Sensor_singnal TEST, whether it is used to detect the ultrasonic signal of transmitting normal.
As illustrated in figures 4-5, it is ethernet circuit schematic diagram.Wherein Fig. 4 is binary channels ethernet physical layer chip
DP83849I circuit parts, CMC chips pass through National Semiconductor using ethernet controller on the piece of its own
Binary channels ethernet physical layer chip DP83849I realizes ethernet feature, and Ethernet chip DP83849I is isolated by Ethernet
Transformer and interface JX0026D21BNL realize communication with the outside world；Fig. 5 is the CMC-alpha chip circuits portion of ethernet circuit
Point, it is used for the processing of ethernet circuit signal and control.
As shown in fig. 6,24L01-MI is wireless communication module, the module carrier frequency is 2.4GHz~2.5GHz, highest
Speed can realize point-to-point or 1 pair 6 radio communication, there is 126 communication channels, built-in CRC check up to 2Mbps.
24L01-MI and CMC-alpha completes SPI communication, sends the data to CMC-alpha.
Fig. 7 is serial ports programming circuit.
Power circuit uses 24V DC-voltage supplies, and be converted into 1.8V and 3.3V voltages through power supply chip supplies for CMC chips
Electricity.
CMC chip circuits：
1) 40kHz signal outputs：CMC chip DO pins output 40kHz pwm signal driving ultrasound detection circuit is sent
Ultrasonic signal；
2) ultrasonic signal detects：The signal that CMC chips are detected by DI input pins detection ultrasound detection circuit
It is identified, handles；
3) SPI serial communications：The information sent in caching is sent to wireless chip by CMC chips by SPI interface, simultaneously
Receive the data from wireless chip；
4) Ethernet is received and dispatched：1 ethernet transceiver is integrated with the piece of CMC chips, by its relevant pins and PHY chip
It is connected and completes Ethernet data exchange.
5) clock and reset signal：CMC chips need 10M crystal oscillators to provide clock signal, it is necessary to which MAX706, which is provided, resets letter
Number and start watchdog reset circuit ensure module normal operation.
Parking space detector configuration：User writes logic control journey on CMC configuration software using ST language or ladder diagram
Sequence or calling function block, realize the functions such as the radio address setting of IP address, constructing local network, Control.By wireless
Or Ethernet interface is by download program to the memory in CMC chips, CMC chips automatic running after the completion of download.
As shown in figure 8, a kind of configurable wireless vehicle position detecting system based on CMC chips, including car described above
Bit detector, central configuration monitor and the wireless smart devices based on the design of CMC chips；Each parking space detector is installed respectively
On a parking stall, for detecting the parking information of parking stall；Radio communication is realized between adjacent parking space detector, so as to final
Realize the communication between whole parking space detectors；Central configuration monitor realizes that Ethernet connects with one of parking space detector
Connect, to monitor the parking information of whole parking stalls；Wireless smart devices and any one parking space detector radio transmitting information, enter
And realize and communicated with central configuration monitor.
Parking space detector condition monitoring：Central configuration monitor only need to be connected to any one parking space detector with netting twine
Ethernet interface is with regard to that can connect the LAN being made up of parking space detector.Just it can monitor and control by CMC configuration monitorings software
Each node device on LAN.
The present invention has following function：
1) present invention possesses parking stall real-time detection function；
2) present invention possesses functions of indicator light；
3) present invention possesses wireless Internet function, can set up WLAN, the network supports data congestion control and
Channel frequency modulation, improve the reliability of system；
4) other wireless smart devices based on the design of CMC chips can also pass through the network delivery information；
5) present invention possesses an Ethernet interface, parking space detector is transmitted data by Ethernet；
6) present invention possesses configuration function, can carry out programming and calling function block to car by ST language and ladder diagram
Bit detector carries out address configuration and function setting；
7) remote monitoring：When parking space detector does not detect vehicle, indicator lamp give a green light and by wireless network or
Ethernet sends parking stall idle signal；When parking space detector has detected that vehicle drives into, indicator lamp sends out a warning and by wireless
Network or Ethernet send parking stall busy signal.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (6)
- A kind of 1. configurable parking space detector based on CMC chips, it is characterised in that including：CMC chips, for the logic function routine call functional module according to storage；Radio communication circuit, it is connected with the CMC chips, for the wireless smart devices channel radio with being designed based on CMC chips Letter；Ethernet circuit, it is connected with the CMC chips, for being connected with the central configuration monitor；Ultrasound detection circuit, it is connected with the CMC chips, parking stall free time shape is detected for launching with received ultrasonic signal State；Indicator lamp, it is connected with the CMC chips, for indicating parking stall idle condition；Clock circuit, it is connected with the CMC chips, for providing clock signal to the CMC chips；Reset circuit, it is connected with the CMC chips, makes the CMC for providing reset signal and starting watchdog reset circuit Chip normal operation.
- 2. a kind of configurable parking space detector based on CMC chips according to claim 1, it is characterised in that described Radio communication circuit transmits data using 2.4G wireless networks.
- 3. a kind of configurable parking space detector based on CMC chips according to claim 1, it is characterised in that described Ultrasound detection circuit described in CMC chips output 40kHz pulsed drive sends ultrasonic signal, and is examined according to the ultrasonic wave The ultrasonic signal that slowdown monitoring circuit receives is identified, handled, and judges parking stall idle condition.
- 4. a kind of configurable parking space detector based on CMC chips according to claim 1, it is characterised in that described Ethernet circuit includes binary channels ethernet physical layer chip, Ethernet isolating transformer and interface, and the CMC chips use it Ethernet controller realizes ethernet feature by the binary channels ethernet physical layer chip on the piece of itself；The binary channels Ethernet physical layer chip realizes communication with the outside world by the Ethernet isolating transformer and the interface.
- 5. a kind of configurable parking space detector based on CMC chips according to claim 1, it is characterised in that described Radio communication circuit includes NRF24L01 chips, and the NRF24L01 chips are led to the CMC chips using spi bus Letter.
- A kind of 6. configurable wireless vehicle position detecting system based on CMC chips, using in such as claim 1 to claim 5 Parking space detector described in any one, it is characterised in that the wireless intelligence including central configuration monitor and based on the design of CMC chips Can equipment；Each parking space detector is separately mounted on a parking stall, for detecting the parking information of parking stall；Adjacent institute State and realize radio communication between parking space detector, so as to finally realize the communication between all parking space detectors；In described Centre configuration monitoring device realizes that Ethernet is connected with parking space detector one of them described, to monitor the parking of whole parking stalls letter Breath；The wireless smart devices and any one of parking space detector radio transmitting information, and then realize and the center stack State monitor communicates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919548.XA CN107610517A (en) | 2017-09-30 | 2017-09-30 | A kind of configurable parking space detector and its system based on CMC chips |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919548.XA CN107610517A (en) | 2017-09-30 | 2017-09-30 | A kind of configurable parking space detector and its system based on CMC chips |
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| CN107610517A true CN107610517A (en) | 2018-01-19 |
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Citations (7)
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|---|---|---|---|---|
| CN2929860Y (en) * | 2006-06-09 | 2007-08-01 | 中国科学院软件研究所 | Radio sensor network node device for detection vehicle position |
| CN201270092Y (en) * | 2008-09-19 | 2009-07-08 | 东莞市帕马智能停车服务有限公司 | Parking space monitoring system and parking space monitoring sensor |
| CN102074125A (en) * | 2011-01-25 | 2011-05-25 | 中山北京理工大学研究院 | Low power consumption parking management system based on wireless sensor network, and wireless network nodes |
| CN202093688U (en) * | 2011-06-07 | 2011-12-28 | 华南理工大学 | Parking stall detection apparatus based on wireless ad-hoc network |
| US20130166333A1 (en) * | 2011-12-24 | 2013-06-27 | Hsin-Pei Chang | Monitoring system for parking space |
| US8704680B1 (en) * | 2013-01-30 | 2014-04-22 | HangZhou HaiCun Information Technology Co., Ltd. | Large-area parking-monitoring system |
| CN204332110U (en) * | 2015-01-12 | 2015-05-13 | 江苏省交通规划设计院股份有限公司 | A kind of parking space state detecting device with parking index analytic function |
-
2017
- 2017-09-30 CN CN201710919548.XA patent/CN107610517A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929860Y (en) * | 2006-06-09 | 2007-08-01 | 中国科学院软件研究所 | Radio sensor network node device for detection vehicle position |
| CN201270092Y (en) * | 2008-09-19 | 2009-07-08 | 东莞市帕马智能停车服务有限公司 | Parking space monitoring system and parking space monitoring sensor |
| CN102074125A (en) * | 2011-01-25 | 2011-05-25 | 中山北京理工大学研究院 | Low power consumption parking management system based on wireless sensor network, and wireless network nodes |
| CN202093688U (en) * | 2011-06-07 | 2011-12-28 | 华南理工大学 | Parking stall detection apparatus based on wireless ad-hoc network |
| US20130166333A1 (en) * | 2011-12-24 | 2013-06-27 | Hsin-Pei Chang | Monitoring system for parking space |
| US8704680B1 (en) * | 2013-01-30 | 2014-04-22 | HangZhou HaiCun Information Technology Co., Ltd. | Large-area parking-monitoring system |
| CN204332110U (en) * | 2015-01-12 | 2015-05-13 | 江苏省交通规划设计院股份有限公司 | A kind of parking space state detecting device with parking index analytic function |
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Application publication date: 20180119 |