KR100545540B1 - Multiple-stage Parking Guidance System - Google Patents

Abstract

The present invention partitions and stratifies the parking lot into a plurality of zones, detects the number of vehicles parked in each sub-zone, displays the parking status in the corresponding zone, and communicates the information to the upper zone of the corresponding zone to pass through the upper zone. It relates to a parking induction guidance system that guides a driver to parking by displaying the parking status of the entire area.A vehicle detection sensor unit is installed in each parking space and connected in series to each zone to detect a vehicle and detect a vehicle. A plurality of sensor units for setting whether to transmit the downlink frame 60; Connected in series with the sensor units 30 of the respective zones or in series with other passage control units 40 to form a loop and downlink frame 70 between the downlink frame 60 or the passage control unit 70; A plurality of passage control units which receive 80 and extract parking data of a corresponding area and display the parking data on the parking data display unit 43 and the direction display unit 50 and transmit the parking data through an uplink frame; Receiving display control data from each passage control unit to guide the direction of the vehicle; a plurality of direction display units 50; configured to display the parking state of the entire parking lot by zone and hierarchy by displaying the vehicle by zone and hierarchy It is effective to lead quickly to the star parking area.

Parking, detection, downlink frame, uplink frame, sensor, path control, direction indication

Description

Multiple-stage Parking Guidance System             

1 is a parking lot equipped with a conventional automatic parking management system,

Figure 2 is another conventional parking lot detection and guidance system,

3 is a block diagram showing a configuration of a sensor unit according to the present invention;

4 is a block diagram showing the configuration of a passage control unit according to the present invention;

5 is a state diagram showing a state in which the parking data display unit and the communication error display unit and the direction display unit of the passage control unit according to the present invention are combined;

Figure 6 is an embodiment of the parking lot is installed parking guidance system according to the present invention,

7 is a state diagram showing an installation state of a sensor unit according to the present invention;

8 is a flowchart showing a method of displaying an operation error and a communication error of a sensor unit according to the present invention;

9 is a flowchart showing a method of controlling the operation of the passage control unit;

Fig. 10 is a block diagram showing zones B, C and E in the above embodiment;

11 is an embodiment of a downlink frame communicated between a plurality of sensor units and a passage control unit constituting zone C in the above embodiment;

12 is an embodiment of a downlink frame communicated between a zone C path control unit and a zone B sensor unit and a zone B path control unit;

Fig. 13 is an embodiment of a downlink frame made between passage control units.

<Description of Symbols for Main Parts of Drawings>

30: sensor unit 31: sensor unit

32: communication unit 33: control unit

34: communication error display part 35: detection display part

40: Path control unit 41: Communication unit

42: control unit 43: parking data display unit

44: remote control data receiving unit 45: communication error display unit

46: Parking limit setting switch 47: Parking capacity display unit

48: Parking limit setting display unit 49: Area parking number display unit

50: direction indication unit 60: zone C downlink frame

70: Zone B downlink frame 80: Path control unit downlink frame

The present invention relates to a parking guidance system, in particular, the parking lot is partitioned and stratified into a plurality of zones to detect the number of vehicles parked in each sub-zone to display the parking state in the corresponding zone, and the information of the corresponding zone. The present invention relates to a parking guidance guide system that communicates to an upper zone and displays the parking status of the entire zone in the passage of the upper zone to guide the driver to the parking.

In general, in order to provide the parking lot convenience accompanying the enlargement of the parking lot due to the building size, high-rise, and compaction of buildings, a study on the rational parking induction guidance system for the driver of the vehicle due to the quantitative expansion and concentration of the car using the parking lot Many have been done, and in particular, various expression methods are known for detecting an empty space in a parking lot and digitizing it to induce a passage.

In general, when the occupancy of the parking space is low in the parking facility, that is, when the parking space is sufficient, it is easy to identify the empty parking space, so that a vehicle entering the parking lot can be easily parked. As the space is difficult to identify, the driver is forced to repeat the roaming in the parking lot or wait until the parking space is empty.

Especially, when the parking lot is flat or dense or multi-level parking lot, there is no facility to provide the driver of the vehicle that has already entered the parking lot to provide adequate information for identifying and inducing parking space. In order to solve these problems, a lot of parking management personnel are arranged for smooth parking induction, and thus an increase in management costs inevitably occurs.

In addition, according to the layout of the parking lot, facilities for inducing parking are installed, so the program of the control device that controls the facilities must be changed according to the number of parking spaces and the direction of the corresponding passage, As the installation of the site maintains a mutually dependent relationship in the control method such as a series of test procedures, the larger the size of the parking lot, the more difficult problems are exposed.

1 is a plan view of a parking lot in which a conventional automatic parking management system is installed. Referring to FIG. 1, one or more conventional automatic parking management systems are installed in all parking spaces. The sensor 1 and the parking data detected by the parking sensor 1 is transmitted through the input communication cable (2) in a daisy chain method and connected to each other, the parking sensor module (3) and the input, Outputs various parking statistics data to the monitor so that users can grasp the parking status by connecting a series of parking data, and is connected to the upper database to share the parking information with various communication systems and display data to the output communication cable (4). Display the number and the direction according to the system controller 5 for transmitting and the display data output from the system controller Guide the amount of the parking space and provided for each corner of the car park, and consists of a display which is dependent inter connected modules 6, a circuit-breaker module (7) for vehicle control.

In the conventional automatic parking management system, it is possible to grasp and display the parking status, but there is a problem in that the parking status cannot be displayed for each parking path, and thus smooth parking guidance cannot be achieved.

FIG. 2 is a plan view of a conventional parking lot detection and guidance system disclosed in US Pat. No. 5,504,314. Referring to FIG. 2, another conventional parking lot detection and guidance system is a system for sensing and inducing a vehicle of a parking lot P. Referring to FIG. At least one inlet 11 and outlet 19 and stations 12 and 18 provided for issuing and retrieving a parking ticket with an electronic ID element, wherein the system detects the parking ticket. At least one transmitter 14 and 15 are disposed in each parking space 13, and the transmitter 14 includes a detection area leading to the corresponding parking space 13.

The system comprises data lines 21-29, through which inlet and outlet stations 12, 18 and transmitter 14 are connected to the central computer 16. And a payment station 17 connected to the central computer.

Such a conventional parking lot detection and guidance system is a payment-based system, which cannot provide driver-centered parking information, and can not display the parking situation for each parking path, thereby allowing smooth parking guidance. There is no problem.

Therefore, the present invention was devised to solve such a conventional problem, and an object of the present invention is to divide a parking lot into a plurality of zones to detect whether the vehicle is parked for each parking zone and to provide parking state information to a passage of the parking zone. It is to provide an object-oriented parking guidance system for displaying.

Another object of the present invention is to provide an object-oriented parking guidance system for displaying a lot of parking information of the lower zone in the passage of the upper zone by stratifying a plurality of zones and communicating the parking data of the lower zone to the upper zone.

Still another object of the present invention is to provide a parking guidance guide system that enables to clearly identify the parking available area without the help of a separate parking assistant.

In order to achieve this purpose, the parking guidance guide system according to the present invention is installed in one parking space of a parking lot to detect a parking vehicle and are connected in series for each zone to form a lower link loop, and whether the vehicle is detected or not. A plurality of sensor units configured to transmit in a downlink frame for ring-based communication in a lower link loop of a zone; Connected in series with the sensor units in each zone or in series with other passage control units to form a lower link loop, and between the downlink frame or passage control unit for ring-type communication in the lower link loop formed in each zone. Receives the downlink frame for ring-type communication from the lower link, extracts parking data of the corresponding zone and the lower zone, displays it on the parking data display unit and the direction display unit, and performs ring-type communication in the upper link loop for the lower link loop. A plurality of passage control units for transmitting the parking data to an upper region through an uplink frame for the apparatus; And a plurality of direction display units for receiving display control data from each passage control unit to guide the direction of the vehicle.

The sensor unit according to the present invention includes a sensor unit for detecting a vehicle parked in one parking space; A communication unit for serial communication with another sensor unit or passage control unit; A control unit configured to receive sensing data from the sensor unit, calculate parking data of a corresponding area, control the communication data by setting the calculated parking data in a downlink frame received by the communication unit, and control an indication of an error; A communication error display unit for receiving and displaying communication error display data from the control unit; And a detection display unit for receiving and displaying vehicle detection display data from the control unit.

Path control unit according to the present invention includes a communication unit for performing downlink and uplink communication; Receive the parking data of the lower zone and the parking data of the own zone by downlink communication, calculate and display the parking data, and set the calculated parking data in the uplink frame used for the uplink communication of the upper zone. A control unit for controlling communication to a higher zone; A parking data display unit displaying parking data under control of the controller; A remote control data receiver for receiving a manual control signal of the remote controller; A communication error display unit displaying a communication state of the communication unit; It consists of; parking limit setting switch that can enter the limited number of parking lot in order to limit the number of parking in the area.

In the direction display unit according to the present invention, a plurality of red light emitting devices and green light emitting devices are alternately installed in the horizontal and vertical directions to display an intaglio arrow as a whole, and the plurality of red light emitting devices and the green light emitting devices control the passage. Under the control of the control unit of the unit, the red light emitting device or the green light emitting device is turned on or off separately or simultaneously.

The sensor unit according to the present invention comprises the steps of determining whether the sensor unit detects the vehicle; If the vehicle is detected, displaying a detection state on the detection display unit; If the vehicle is not detected, displaying a non-detected state on the detection display unit; Determining whether data is input to a receiving terminal of the communication unit; Displaying an error on the communication error display unit when no data is input to the receiving terminal of the communication unit; When data is input to the receiving terminal of the communication unit, the vehicle sensing data is set in the downlink frame, and then transmitting to another sensor unit or the passage control unit through the communication terminal of the communication unit.

According to an aspect of the present invention, a path control unit includes: transmitting a downlink frame through a second transmission terminal; Determining whether a downlink frame is input through the second receiving terminal; If a downlink frame is not input, indicating a communication error; Generating path information from the downlink frame when a downlink frame is input; Determining whether a manual control request has been input from the remote control data receiving unit; Displaying a control state on a parking data display unit and displaying a red arrow on a direction display unit when a control request is input; Comparing the total number of available parking spaces with the number of available parking spaces to be controlled, if a control request has not been entered; Displaying a green arrow on the direction indicating unit when the total number of parking spaces is large; Determining whether the total number of parking spaces is "0" when the total number of parking spaces is smaller than the number of parking spaces to be controlled as a result of the comparison; If it is not "0", displaying a yellow arrow on the direction indicating unit; If "0", displaying a red arrow on the direction display unit; Calculating the parking available data of the lower zone and the own zone from the received downlink frame and displaying the total number of available parking on the parking data display, and displaying the number of currently parked vehicles in the corresponding area on the parking data display; Determining whether data has been received from the first receiving terminal; If data is not received, displaying an error state on the communication error display unit, and when the data is received, setting the calculated parking data in an uplink frame and transmitting the same to an upper path control unit.

Hereinafter, the configuration of the parking guide system according to the present invention will be described by the accompanying drawings.

3 is a block diagram showing the configuration of the sensor unit according to the present invention.

The sensor unit 30 according to the present invention includes a sensor unit 31 for detecting a vehicle parked in one parking space; A communication unit 32 in serial communication with the other sensor unit 30 or the passage control unit 40; Receiving the sensing data from the sensor unit 31 to calculate the parking data of the area, the communication unit 32 to control the communication by setting the calculated parking data in the received downlink frame and to control the display of the error A control unit 33; A communication error display unit 34 for receiving and displaying communication error display data from the control unit 33; And a detection display unit 35 which receives and displays vehicle detection display data from the control unit 33.

4 is a block diagram showing the configuration of the passage control unit according to the present invention.

Path control unit 40 according to the present invention includes a communication unit 41 for downlink and uplink communication; The parking data of the lower area and the parking data of the own area are received by downlink communication, the parking data is calculated and displayed and controlled, and the calculated parking is performed on the uplink frame for ring-type communication in the upper link loop formed in the upper area. A control unit 42 for setting data and controlling the communication to a higher zone; A parking data display unit 43 for displaying parking data under control of the control unit 42; A remote control data receiver 44 for receiving a manual control signal of the remote controller; A communication error display unit 45 for displaying a communication state of the communication unit 41; It consists of a parking limit setting switch 46 that can enter the limited number of parking in order to limit the number of parking in the area.

Fig. 5 shows a state in which the parking data display unit, the communication error display unit, and the direction display unit of the passage control unit according to the present invention are combined.

The parking data display unit 43 of the passage control unit 40 includes a parking capacity display unit 47 which displays the number of parkings available in the own area and the number of parkings available in the lower area; A parking limit setting display unit 48 which displays a limit parking number set by the parking limit setting switch 46 in advance or input by a remote controller to preliminarily control the number of parking spaces in the corresponding area; It is composed of; local parking lot number display unit 49 for displaying the number of parking available in the current magnetic zone.

The communication error display unit 45 of the passage control unit 40 includes downlink error display units TX ₂ and RX ₂ indicating downlink transmission and reception states and uplink display units TX ₁ and RX ₁ indicating uplink transmission and reception states. It is composed of

In the direction display unit 50, a plurality of red light emitting devices R and green light emitting devices G are alternately installed in the horizontal and vertical directions to display negative arrows as a whole. In the plurality of red light emitting devices R and the green light emitting devices G, the red light emitting devices R and the green light emitting devices G are turned on separately or simultaneously under the control of the control unit 42 of the passage control unit 40. Or off.

In this case, when only the red light emitting device R is turned on, the red arrow is displayed. Therefore, the parking space in the direction of the arrow is full. When the green light emitting device G is turned on, the green arrow is displayed. Since it is displayed, it indicates that parking is possible in the parking space in the direction of the arrow.

On the other hand, when the red light emitting device R and the green light emitting device G are turned on at the same time, red and green are mixed to display a yellow arrow as a whole, indicating that the parking space in the direction of the arrow is below the parking limit setting number. do.

Hereinafter, the operation and effect of the present invention will be described with reference to an embodiment in which a parking guide system is constructed using a sensor unit, a passage control unit, and a direction display unit according to the present invention.

6 shows an embodiment of a parking lot in which the parking guidance guide system according to the present invention is installed.

The parking lot of the present embodiment is divided into six zones from the zone A to the zone F, and one sensor unit 30 corresponds to the parking space where one vehicle can park on the upper portion of each zone, as shown in FIG. As described above, a plurality of sensor units 30 are installed at the upper portion of each parking space. By installing the sensor unit 30 in the upper portion of the parking space, the sensor can be easily maintained and repaired even when the vehicle is parked.

A plurality of sensor units 30 installed in each zone to detect a parking vehicle are connected in series for each zone to form a link loop, and whether the vehicle is detected is downlink for ring type communication in the link loop formed in the corresponding zone. The frame is set in the frame and transmitted to the passage control units 40-2, 40-4, 40-5, 40-7, 40-8, and 40-9.

At this time, the sensor unit 30 is displayed on the communication error display unit 34 so as to confirm from the outside whether its operation and communication with other units are normally performed. The detection display unit 35 includes an indicator for detecting that the vehicle is parked and an indicator for indicating that the vehicle is empty.

For example, the detection display unit 35 may include a green indicator indicating that the empty space and a red indicator indicating that the vehicle is parked. Similarly, the communication error display unit 34 may also detect a communication error and a green indicator indicating normal communication. It can be configured with a red indicator to display.

8 is a flowchart showing a method of displaying a motion detection and a communication error of a sensor unit according to the present invention.

The sensor unit 31 of the sensor unit 30 according to the present invention typically uses an ultrasonic sensor as a sensor, and may use a photo coupler, an optical sensor, or the like depending on the application environment. The control unit 33 of the sensor unit 30 determines whether the sensor unit 31 detects the vehicle (step S1), and when the vehicle is detected, the red indicator of the detection display unit 35 is turned on to park the vehicle. If the vehicle is not detected (step S2), the green indicator of the detection display unit 35 is turned on to display an empty space (step S3).

In step S4, the controller 33 determines whether data is input to the receiving terminal RX of the communication unit 32, and displays a communication error when no data is input to the receiving terminal RX of the communication unit 32. When the red indicator is turned on (step S5) and data is input to the receiving terminal RX of the communication unit 32, the vehicle detection data is set in the downlink frame, and then the transmission terminal TX of the communication unit 32 is set. It transmits to the other sensor unit 30 or the passage control unit 40 via (step S6).

On the other hand, as shown in Figure 6, the passage control units (40-2, 40-4, 40-5, 40-7, 40-8, 40-9) of each zone is the sensor unit 30 of each zone Are connected in series to form a loop and receive a downlink frame for ring-type communication from the link loop formed in each zone, extract the parking data of the corresponding zone, and display the parking data in the corresponding parking data display unit 43, and the direction The color of the display units 50-2, 50-4, 50-5, 50-7, 50-8, 50-9 is controlled and the upper passage control units 40-1, 40-3 are controlled through the uplink frame. 40-6) to transmit the parking data.

9 is a flowchart showing a method of controlling the operation of the passage control unit.

The control unit 42 of the path control unit transmits the downlink frame through the second transmitting terminal TX ₂ (step S11), and determines whether the downlink frame is input through the second receiving terminal RX ₂ ( Step S12), when no downlink frame is input, an error is displayed on the communication error display unit 45 (step S13), and when the downlink frame is input, path information is generated from the downlink frame (step S14).

The passage control unit has a remote control data receiving unit 44 so as to arbitrarily control the vehicle entry of the passage, after generating the passage information in the step, the remote control data receiving unit for arbitrarily controlling the entry of the area in step S15 It is determined from (44) whether a manual control request has been input.

When the manual control request is input, the control state is displayed on the parking limit setting display unit 48 of the parking data display unit 43 (step S16), and the red light emitting device R of the direction display unit 50 is turned on. To display a red arrow (step S21).

On the other hand, when the manual control request is not input in the step S15, by comparing the total number of parking available and the number of control set in the parking limit setting switch 46 to be controlled (step S17), if the total parking available number is large, the direction indication The green light emitting device G of the unit 50 is turned on to display a green arrow (step S19). Here, the parking limit setting switch 46 may be configured as, for example, a dip switch, and may set the number of parkings to be controlled in a corresponding area in advance.

As a result of the comparison, when the total number of available parking spaces is smaller than the parking limit setting number to be automatically controlled, it is determined whether the total number of available parking spaces is "0" (step S18), and when it is not "0", the direction display unit 50 When the green light emitting device G and the red light emitting device R are turned on at the same time, a yellow arrow is displayed (step S20), and if "0", the red light emitting device R of the direction display unit 50 is turned on. The red arrow is displayed in the state (step S21).

Subsequently, the controller 42 calculates the parking available data of the lower zone and the own zone from the received downlink frame, displays the total number of available parking spaces on the parking capacity display unit 47, and calculates the number of vehicles currently parked in the corresponding zone. Then, it is displayed on the area parking number display unit 49 (step S22).

In order to transmit the parking data calculated as described above to the upper passage control unit through the uplink frame, it is determined whether data has been received from the first receiving terminal RX ₁ (step S23), and when no data is received, communication The error state is displayed on the error display unit 45 (step S24). When data is received, the calculated parking data is set in the uplink frame and transmitted to the upper path control unit via the first transmission terminal TX ₁ . (Step S25).

Areas A, C, D, E, and F are each passage control unit (40-2, 40-4, 40-7, 40-8, 40-9) and a plurality of sensor units (30) installed in the parking space of the area. The passage control unit and the sensor unit of each zone are connected in series and communicate through the downlink frame.

Zone B is at the upper level of Zone C. A number of sensor units 30, Zone C passage control unit 40-9 and Zone B passage control unit 40-5 are connected in series. Communicate over ring-based uplink frames (based on zone C). The B and E zone passage control units 40-5 and 40-7 and the passage control units 40-3 and 40-6 are connected in series to communicate with each other in an uplink frame.

10 is a block diagram showing zones B, C and E in this embodiment.

The sensor units 30 are respectively installed at the upper end of each parking space of the parking lot, the sensor unit 31 detects the parking and reflects the detection state to the detection data of the downlink or uplink frame in a ring method. Communicate

For example, the communication between the plurality of sensor units 30-C ₁ , 30-C ₂ ,..., 30-C _n and the passage control unit 40-9 constituting the zone C will be described. .

Zone C path control unit 40-9, through the second transmission terminal TX ₂ , terminates with one byte STX 61 indicating the start of downlink frame 60, as shown in FIG. One byte ETX 62 to be displayed is output to the sensor unit 30-C ₁ .

The sensor unit 30-C ₁ displays data indicating the parking state, for example 30 ₁₆ , in the byte 63 after the STX 61.

The hexadecimal number 30 ₁₆ indicates that the parking space detected by the sensor unit 30-C ₁ is in the "tolerance" state, and likewise, the hexadecimal 34 ₁₆ degree sensor unit 30-C _{2 of} the next byte 64 is displayed. Indicates that the parking space detected by the car is in the "parking" state.

Here, since the height is different according to the type of parking lot, different data are set as follows, for example, to display the "tolerance" state and the "parking" state according to the height.

In the case of a parking lot with a height of 190 cm, the "tolerance" status is displayed in hexadecimal 30 ₁₆ , 34 ₁₆ when it is parked, and in the case of a parking lot with a height of 210 cm, Hexadecimal 31 ₁₆ is displayed in the "tolerance" state, 35 ₁₆ is displayed when parked, hex 32 ₁₆ is displayed in the "tolerance" state when the parking lot is 230 cm high, 36 ₁₆ is displayed when the vehicle is parked, hexadecimal 33 ₁₆ is displayed in the "tolerance" state when the parking lot is 250 cm in height, and 37 ₁₆ when it is parked.

The zone C passage control unit 40-9 receives the downlink frame 60 from the last sensor unit 30-C _n at its second receiving terminal RX ₂ , and the ETX 62 from the second byte 63. Until a value is found, and the value is detected one byte, and if it is 30 _16, it is determined as "tolerance", and if it is 34 _16, it is determined as "parking" and the parking data is calculated.

At this time, if there is no data reception from the second receiving terminal (RX ₂ ), as shown in Figure 5, it is displayed on the communication error display unit 45 that indicates that an error occurred in the downlink communication.

The result of the calculation is displayed on the parking data display unit 43, and from this the indication is made on the direction display unit 50-9. For example, if the result of subtracting the current parking number from the total number of available parking spaces exceeds a certain number (for example, five), the direction indication unit 50 lights up in green. Lights up in yellow, red lights up in case of less than one.

The passage control units 40-2, 40-4, 40-5, 40-7, 40-8, and 40-9 acquire the parking data of the corresponding area with the downlink frame as above, and upload the parking data to the upper part. The path control units 40-1, 40-3, and 40-6 communicate with each other using uplink frames.

C Zone passage control unit (40-9), B is a zone sensor unit _{(30-B 1, 30-} B 2, ...) and B areas passage control unit is connected (40-5) in series with the B zone link Configure.

The zone B passage control unit 40-5 is shown in FIG. 12, with the byte STX 71 indicating the start of the downlink frame 70 and the end via the second transmission terminal TX ₂ . The byte ETX 72 is output to the sensor unit 30-B ₁ .

Sensor unit (30-B ₁ , ..., 30-B _m ) is whether the vehicle parking detected by the byte (73) to m-th byte (74) after the STX (71) in the downlink frame 70 received The data to be displayed (for example, "tolerance" for 30 _{16 and} "parking" for 34 ₁₆ is set.

As described above, after the sensor units 30-B ₁ ,..., 30-B _m set the parking data, the passage control unit 40-9 in the byte 75 has ASCII if the C zone is a normal passage. ) Code "N", if the maximum number of cars is a restricted path, "R" is set. If C is an error path, "n" is set. If the error is a restricted path, "r" is set.

Subsequently, the address (for example, composed of two ASCII code characters 0 to F) of the C area passage control unit 40-9 is set in the next two bytes 76, and C is set in the next one byte 77. The detection data of the zone is set, and " ESC " indicating the end of the zone C data in the next byte 78 is displayed. "ESC" sets the parking data detected by the sensor units 30-B _{m + 1} , ..., 30-B _n between the next byte 79 and the ETX.

As described above, the parking data detected in the B, C, D, and E zones are ring-shaped communication between four passage control units 40-3, 40-5, 40-6, and 40-7 connected in series with each other. As a result, the parking data sensed in the B, C, D and E zones are transferred to the passage control unit 40-3.

Fig. 13 shows an embodiment of a downlink frame made between passage control units.

As shown in Fig. 6, the lower link and passage control units 40-1, 40-2, 40-3, which are composed of passage control units 40-3, 40-5, 40-6, 40-7, It is commonly connected to the upper link composed of 40-4), and the lower section passage control unit (40-3, 40-) is viewed from the upper region near the entrance centered on the passage control unit 40-3. The link consisting of 5,40-6,40-7 corresponds to the downlink, and the link consisting of upper zone passage control units 40-1,40-2,40-3,40-4 is uplink. Corresponds to Thus, the passage control unit 40-3, as shown, is configured to communicate in a ring manner in the downlink consisting of the passage control units 40-3, 40-5, 40-6, 40-7. Through the transmission terminal TX ₂ , the byte STX 81 indicating the start of the downlink frame 80 and the byte ETX 82 indicating the end are output to the path control unit 40-5.

Zone B passage control unit 40-5 sets ASCII code " N " to STX next byte 83 if zone B is a normal passage, and " R " if the maximum number of parking lots is restricted. Set "n" if an error occurs and "r" if an error occurs while restricted. In the present embodiment, " N " indicating a normal passage is displayed.

Then, the address assigned to the zone B passage control unit 40-5 is set in the next two bytes 84 (for example, the ASCII code " 5, 9 "), and the next byte 85 is assigned to the zone B. The parking data is set for the parking data, and then "ESC" is set in the next byte 86 to indicate the end of the data for the zone B passage control unit 40-5.

The downlink frame 80 in which the data for the zone B passage control unit 40-5 is set in the path control unit 40-6 at the first transmission terminal TX ₁ of the zone B passage control unit 40-5. ) and from the first receiving terminal (RX is output to the _first), the passage control unit (40-6) is then ESC byte 87 of the B section passage control unit (40-5) a downlink frame 80 of In the same manner, the address and the D zone parking data for the passage control unit 40-6 are set.

Similarly, the downlink frame 80 in which data for the zone B passage control unit 40-5 and the passage control unit 40-6 is set is the first transmission terminal TX ₁ of the passage control unit 40-6. Is outputted to the first receiving terminal RX _{1 of the} E zone passage control unit 40-7, and the E zone passage control unit 40-7 is the passage control unit 40-6 in the downlink frame 80. From the next byte of ESC, the address and the E zone parking data for the E zone passage control unit 40-7 are set in the same manner as described above.

As described above, the downlink frame 80 in which the data for the B zone passage control unit 40-5, the passage control unit 40-6, and the E zone passage control unit 40-7 is set is an E zone passage control unit. Transmitting terminal TX ₁ of 40-7 is transmitted to receiving terminal RX ₂ of passage control unit 40-3.

In the above manner, the parking data of the B, C, D, and E zones is transmitted to the passage control unit 40-3, and the passage control unit 40-3 sums the parking data of each zone to calculate the number of available parking spaces. It is displayed on the parking capacity display unit 47 and the local parking lot number display unit 49 of the parking display unit 43.

The parking data for Zone A and Zone F is transferred to the passage control units 40-2 and 40-4 of Zone A and Zone F in the same manner as the parking data communication method for Zone C, as described above. The passage control units 40-2, 40-4 of the zone are connected in series with the passage control units 40-1, 40-3 so that the passage control units 40-3, 40-5, 40-6, 40-7) are communicated in the same manner as the communication method between them, the parking data of the A, B, C, D, E and F zone is transmitted to the passage control unit 40-1 installed at the entrance, and the passage control unit ( 40-1) on the parking display 43.

As described above, according to the present invention, the parking lot is partitioned and stratified into a plurality of zones to detect the number of vehicles parked in each sub-zone and display the parking state in the corresponding zone, and communicate the information to the upper zone of the corresponding zone. By displaying the parking state of the whole area in the passage of the upper zone, the parking state of the entire parking lot is displayed by zone and by layer, thereby quickly inducing vehicles to the zone by zone and by zone.

In addition, it is possible to clearly identify a parking area that can be parked without a separate parking assistant, so that it can move quickly, and the parking lot management is simplified.

The above description is only a description of specific embodiments of the present invention, the technical spirit of the present invention is not limited to these specific embodiments, and various changes and modifications of the configuration from the above-described specific embodiments of the present invention It will be apparent to those skilled in the art that the present invention is possible.

Claims (9)

It is installed in one parking space of a parking lot to detect a parking vehicle, and is connected in series to each zone to form a lower link loop, and whether the vehicle is detected is a downlink frame for ring type communication in the lower link loop formed in the corresponding zone. A plurality of sensor units 30 configured to transmit to 60; It is connected in series with the sensor unit 30 of each zone or in series with another passage control unit 40 to form a lower link loop, the downlink frame for ring-type communication in the lower link loop formed in each zone Parking data display unit 43 and direction display unit by receiving downlink frame 80 for ring-type communication from the lower link loop between the 60 and 70 path control units and extracting parking data of the corresponding zone and the lower zone. A plurality of passage control units 40-1, ..., which are indicated at 50 and transmit the parking data to an upper zone through an uplink frame for ring scheme communication in an upper link loop for the lower link loop. 40-9); And a plurality of direction display units (50) for guiding the direction of the vehicle by receiving display control data from each passage control unit. According to claim 1, wherein the sensor unit 30 comprises a sensor unit 31 for detecting a vehicle parked in one parking space; A communication unit 32 in serial communication with the other sensor unit 30 or the passage control unit 40; Receiving the sensing data from the sensor unit 31 to calculate the parking data of the area, the communication unit 32 to control the communication by setting the calculated parking data in the received downlink frame and to control the display of the error A control unit 33; A communication error display unit 34 for receiving and displaying communication error display data from the control unit 33; And a detection display unit (35) for receiving and displaying vehicle detection display data from the control unit (33). 2. The apparatus of claim 1, wherein the passage control unit (40) comprises: a communication unit (41) for uplink and downlink communication; The parking data of the lower zone and the parking data of the own zone are received by downlink communication, the parking data is calculated and displayed and controlled, and the calculated parking is performed on the uplink frame for ring-type communication in the upper link loop formed in the upper zone. A control unit 42 for setting data and controlling the communication to a higher zone; A parking data display unit 43 for displaying parking data under control of the control unit 42; A remote control data receiver 44 which receives a manual control signal of the remote controller; A communication error display unit 45 for displaying a communication state of the communication unit 41; Parking guidance guide system, characterized in that consisting of; parking limit setting switch 46 that can enter the limited number of parking lot in order to limit the number of parking in the area. The parking guidance guide system according to claim 1, wherein the direction display unit (50) is provided with a plurality of red light emitting devices (R) and green light emitting devices (G) alternately to display an incline arrow as a whole. 2. The downlink frame (60) of a zone consisting of a plurality of sensor units (30) and a passage control unit (40), comprising: one byte STX to indicate the start of the downlink frame (60); One byte ETX indicating termination; And parking data set by the respective sensor units between the STX and the ETX. 2. The downlink frame (70) of claim 1, wherein the downlink frame (70) of the zone consisting of a plurality of sensor units (30) and passage control unit (40) and lower passage control unit (40) marks the beginning of the downlink frame (70). One byte STX to indicate; One byte ETX set at the end of the frame to indicate termination; Parking data sensed by each sensor unit set between the STX and the ETX; Data for indicating the beginning and the end of the subregion data; And a parking data of the sub-zone and the address of the sub-zone passage control unit (40). 2. The communication frame (80) of claim 1, wherein the communication frame (80) consisting of a plurality of path control units (40) comprises: one byte STX to indicate the start of the frame; One byte ETX set at the end of the frame to indicate termination; Data indicating a start and an end of subzone data set between the STX and the ETX; And a parking data of the sub-zone and the address of the sub-zone passage control unit (40). The method according to claim 1 or 2, wherein the sensor unit (30) comprises the steps of determining whether the sensor unit (31) sensed the vehicle; Displaying a detection state on the detection display unit 35 when the vehicle is detected; If the vehicle is not detected, displaying the undetected state on the detection display unit 35; Determining whether data is input to a receiving terminal of the communication unit 32; Displaying an error on the communication error display unit 34 when data is not input to the receiving terminal of the communication unit 32; When data is input to the receiving terminal of the communication unit 32, after setting the vehicle detection data in the downlink frame, transmitting to another sensor unit or passage control unit through the transmission terminal of the communication unit 32; Parking guidance guide system, characterized in that. 4. The method according to claim 1 or 3, wherein the path control unit (40) transmits a downlink frame through a second transmission terminal (TX ₂ ); Determining whether a downlink frame is input through the second receiving terminal RX ₂ ; If a downlink frame is not input, indicating a communication error; Generating path information from the downlink frame when a downlink frame is input; Determining whether a manual control request has been input from the remote control data receiver 42; Displaying a control state on the parking data display unit 43 and displaying a red arrow on the direction display unit 50 when the control request is input; Comparing the total number of available parking spaces with the number of available parking spaces to be controlled by the parking limit setting switch 46, if no control requirement is entered; Displaying a green arrow on the direction indicating unit 50 when the total number of parking spaces is large; Determining whether the total number of parking spaces is "0" when the total number of parking spaces is smaller than the number of parking spaces to be controlled as a result of the comparison; Displaying a yellow arrow on the direction indicating unit 50 when it is not "0"; Displaying a red arrow on the direction indicating unit 50 when " 0 &quot;; From the received downlink frame, the parking available data of the lower area and the own area is calculated, and the total number of available parking spaces is displayed on the parking data display unit 43, and the number of vehicles currently parked in the corresponding area is displayed on the parking data display unit 43. Displaying; Determining whether data has been received from the first receiving terminal RX ₁ ; If the data is not received, displaying an error state on the communication error display unit 45, and when the data is received, setting the calculated parking data in an uplink frame and transmitting it to an upper passage control unit 50; Parking guidance guide system, characterized in that the control.

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