JP2020045715A - Parking lot signboard with display for number of vacant parking spaces - Google Patents
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Abstract
Description
本発明は、車室ごとに駐車時間を算出できる時間貸し駐車場において、利用できる空車室数を表示できる駐車場看板に関する。
The present invention relates to a parking lot signboard that can display the number of available vacant rooms in a time rental parking lot where the parking time can be calculated for each vehicle room.
大型のゲート式の駐車場においては、ブロックごとあるいは階床ごとに、満車、空車の表示装置が設けられている。また、個々の車室に車両検出装置を備えた時間貸し駐車場においても、満車、空車を表示する駐車場看板が駐車場入口付近に設置されている。大型の駐車場では、車室数が多いので、この2種類の表示だけでも利用者にとってさして不便はない。 In a large gate-type parking lot, a display device of full or empty is provided for each block or each floor. In addition, in a time rental parking lot provided with a vehicle detection device in each vehicle compartment, a parking lot signboard indicating that the vehicle is full or empty is installed near the entrance of the parking lot. In large parking lots, there are many passenger compartments, so there is no inconvenience for users even with these two types of display alone.
しかし、車室の数が例えば１０ないし２０台のような中小規模の駐車場では、満車空車の表示だけでは、空車室の数がわからないので、例えば、空車の表示を見て仲間で複数の車両を駐車しようとした時など、途中で満車になってしまって、残りの車両は別の駐車場を探さなければならないといったような不便や、駐車したいエリアでの駐車場の込み具合が分からないといった不便が生じる。 However, in a small- or medium-sized parking lot having 10 to 20 compartments, for example, only the indication of full vacancies does not indicate the number of vacant compartments. For example, when trying to park a car, it becomes full on the way, and the remaining vehicles have to search for another parking lot, or you do not know how much the parking lot is in the area you want to park Inconvenience occurs.
従って、空車室がある場合には、その空車室数を表示する駐車場看板があると便利である。空車室の表示装置は、以下に示す先行技術文献にいくつか開示されている。
Therefore, when there is an empty room, it is convenient to have a parking lot signboard indicating the number of empty rooms. Some of the display devices of the empty room are disclosed in the following prior art documents.
特許文献１では、多階式駐車場において、駐車車両検出にLEDの光の遮蔽を利用した方法と、検出結果を元にして、各階床の空車室数を算出し、その結果を各階の入口に空車と空車室数を同時に表示する方法が開示されている。 In Patent Literature 1, in a multi-storey parking lot, the number of vacant rooms on each floor is calculated based on a method using the shielding of LED light for parked vehicle detection and the detection result, and the result is used as the entrance of each floor. Discloses a method of simultaneously displaying the number of vacant rooms and the number of vacant rooms.
非特許文献１では、ゲート式の駐車場において、入場する車両と出場する車両をセンサーで検知して、場内に残る車両数を求め、その数を駐車場の収容車両数から差し引いて空車室の数を計算し、駐車場入口で現在何台の駐車が可能かを数値表示する装置が示されている。 In Non-Patent Document 1, in a gate-type parking lot, vehicles entering and leaving the vehicle are detected by sensors, the number of vehicles remaining in the parking lot is obtained, and the number is subtracted from the number of accommodated vehicles in the parking lot to determine the number of empty vehicles. An apparatus is shown which calculates the number and numerically indicates how many cars are currently available at the entrance of the parking lot.
また、非特許文献２には、多階床式駐車場で、各階の空車率がどれくらいあるかを円グラフで表示する方法が開示されている。 Non-Patent Document 2 discloses a method of displaying a vacancy rate on each floor in a multi-floor parking lot in a pie chart.
一方、中小規模のフラップ装置を備えた時間貸し駐車場では、精算機が個々の車室への車両の入出庫を検知するセンサーの情報を元に、個々の車室に駐車した車両に対し駐車時間に応じた駐車料金を課金している。精算機は、総車室数から現在の駐車中の車両数を引き算して空車室の数を算出することも可能になっている。 On the other hand, in hourly parking lots equipped with small and medium-sized flap devices, the checkout machine parks vehicles parked in individual compartments based on information from sensors that detect the entry and exit of vehicles into individual compartments. The parking fee is charged according to the time. The checkout machine can also calculate the number of vacant compartments by subtracting the number of currently parked vehicles from the total number of compartments.
このような中小規模の駐車場においても、空車室の数を表示できるような表示装置は非特許文献３に見られる。すなわち、従来の満空表示ができる駐車場看板の下部に、外付けする形で空車室がある場合にその車室数を表示できるものである。 Non-Patent Document 3 discloses a display device that can display the number of vacant rooms even in such a small- to medium-sized parking lot. That is, when there is an empty room externally attached to the lower part of a conventional parking lot signboard capable of displaying a full vacancy, the number of empty rooms can be displayed.
しかし、残車室数を従来の駐車所看板の満空表示の下部に外付けの表示装置で表示するのは見栄えが悪い。また、残車室数の数だけを表示するよりも、人がその看板を見たときに、容易に駐車場の空車の状況を把握できるように例えば５台というように数字だけでなく「台」という文字を加えた方が分かりやすいこともわかっていた。 However, it is not good to display the number of remaining vehicle compartments below an empty display on a conventional parking signboard using an external display device. Also, rather than displaying only the number of remaining rooms, when a person looks at the signboard, the user can easily grasp the vacant state of the parking lot. I knew it would be easier to add the word "."
また、残車室数の表示をＬＥＤ表示板で表示しようとすると、例えば残車室数１０台以上がある場合に、表示桁数が二けたになり表示盤が大きく高価になるというような欠点があることもわかってきた。したがって、表示方法を改善した残車室数表示付の一体型駐車場看板が必要ではないかと考えた。 Further, if the LED display board is used to display the number of remaining rooms, for example, when there are 10 or more remaining rooms, the number of display digits becomes two digits and the display panel becomes large and expensive. I also know that there is. Therefore, we thought that an integrated parking lot signboard with the remaining vehicle number display with an improved display method would be necessary.
本発明は、中小規模の時間貸駐車場の看板として、満空表示の部分を単に満車を示す「満」や空車を示す「空」の表示だけではなく、空車室がある場合には、１０台未満の空車室数の場合は、「空」の表示と空車室の台数がたとえば5台の場合「5台」という表示を、感覚的にわかりやすい時間間隔と長さで交互に表示するようにしたこと、さらに残車室数が１０台を以上の場合には、ＬＥＤ表示盤の表示サイズの制限や、大型にしてコスト高になることを避けるために、残車室数の表示ではなく、駐車場に誘導できるような場内方向を指す矢印を、「空」の表示と適当な時間間隔と長さで表示させるようにして、スマートな一体型の空車室表示付駐車場看板を実現した。
According to the present invention, as a signboard of a small-to-medium-sized hourly parking lot, a full-vacancy display portion is not only a display of "full" indicating that the vehicle is full or "empty" indicating an empty vehicle. When the number of empty rooms is less than the number of empty rooms, the display of `` empty '' and the display of `` 5 '' when the number of empty rooms is 5, for example, are alternately displayed at time intervals and lengths that are intuitively understandable. In addition, when the number of remaining compartments is 10 or more, instead of displaying the number of remaining compartments, in order to prevent the display size of the LED display panel from being large and increasing the cost, An arrow pointing in the direction of the parking space that can be guided to the parking lot is displayed at an appropriate time interval and length, and a smart integrated parking sign with an empty room display is realized.
本発明によれば駐車場に駐車していない残車室がある場合に、従来の満空表示と違って、残車室数の量に応じて空車の状況を表示できるスマートな一体型空車室数表示付駐車場看板を設置できるので、駐車場の利用者は駐車したいエリアの駐車場の込み具合がわかり、駐車しやすい駐車所を選んで駐車することが可能になり、駐車場の経営者も、駐車場の稼働率の向上を期待できるといった効果を提供できる効果がある。
According to the present invention, when there is an unoccupied vacant room in the parking lot, unlike the conventional full display, a smart integrated vacant room that can display the vacant status according to the number of remaining vacant rooms A parking lot sign with a number display can be installed, so that parking lot users can understand the degree of inclusion of the parking lot in the area they want to park and select a parking lot that is easy to park and park it. Also, there is an effect that an effect that an improvement in the occupancy rate of the parking lot can be expected can be provided.
図１は、本発明の駐車場に空車室がある場合の満空表示ＬＥＤ板の表示例を示すもので、１は残車室数が９台あることを表示したもの、２は空車室があるという従来の表示を示したものである。従来は、残車室数の大小にかかわらず、空のみを表示していたが、本発明では、空の文字と、９台という残車室数を交互に表示するようにした。 FIG. 1 shows a display example of a full-vacancy display LED board when there is an empty room in the parking lot of the present invention, where 1 indicates that there are nine remaining rooms, and 2 indicates that there are no empty rooms. This shows a conventional display that there is. Conventionally, only the sky is displayed regardless of the number of remaining rooms, but in the present invention, empty characters and the number of remaining rooms of nine are alternately displayed.
駐車場の利用者は、混んでいる駐車場か、それとも駐車スペースに余裕がある駐車場なのかを知ることができれば、余裕のある駐車場に駐車するであろうという心理的な効果が期待でき、残車室数がわかる駐車場の稼働率が向上するであろう。 If a parking lot user can know whether it is a crowded parking lot or a parking lot with ample parking space, it can be expected to have a psychological effect that they will park in a parking lot with ample space. The utilization rate of the parking lot, which indicates the number of remaining rooms, will be improved.
しかし、発明者らの視認性の向上を種々検討した結果、空と残車室数を示す数字だけでは、その数字が必ずしも残車室数であるとはわからないことがわかり、図１からも分かるように、本発明では数字の次に「台」の文字を入れる工夫をした。この満空や台数表示は、ＬＥＤ表示盤を使うことになるが、表示枠の大きさやコストの制限から、１０台以上の残車室がある場合に、数字と「台」の文字を書き込むことには無理があることがわかった。 However, as a result of various studies on the improvement of the visibility of the inventors, it can be understood that the number indicating the number of empty rooms and the number of remaining rooms is not necessarily the number of remaining vehicles, and FIG. As described above, in the present invention, the device of putting the character of "dai" after the number is devised. The LED display panel will be used for the display of the vacancy and the number of vehicles. However, due to the size of the display frame and cost restrictions, if there are more than 10 remaining rooms, write the numbers and the letters "vehicles". Turned out to be impossible.
そこで、本発明では、図２に示すように駐車場の駐車状態により、ＬＥＤ表示盤の表示を３つのケースに分けて行うことにした。すなわち、全車室が駐車状態にあるときは、従来通り「満」の文字を赤色などで表示し続けるが、残車室数が９台以下の場合に限って、「空」の文字と、残車室の数をたとえば７台という風にし、両者を視認性の良い表示時間と表示間隔で表示することにした。実験の結果、「空」の表示を１．７秒、台数の表示を０．７秒とするのがベストとわかった。ただし、このような時間間隔などは、本発明では、設定で任意に変えられるようにしたことは勿論である。 Therefore, in the present invention, the display on the LED display panel is divided into three cases depending on the parking state of the parking lot as shown in FIG. That is, when all the compartments are in the parked state, the character of “full” is displayed in red or the like as before, but only when the number of remaining compartments is nine or less, the character of “empty” and the remaining The number of passenger compartments is set to, for example, seven, and both are displayed at a display time and display interval with good visibility. As a result of the experiment, it was found that it is best to display "sky" for 1.7 seconds and display the number of devices for 0.7 seconds. However, such time intervals and the like can be arbitrarily changed by setting in the present invention.
次に１０台以上の残車室がある場合は、「空」の文字と１０以上の二桁の数字を表示させると、表示盤の中の文字を小さくしなければならず、視認性が悪くなってしまうので、本発明では、図２の残車室数が１０台以上ある場合のところに書いたように、「空」と交互に表示する台数の表示でなはなく、駐車場内に向かって動く矢印を表示することにした。 Next, when there are ten or more remaining cabin, displaying "empty" characters and ten or more two-digit numbers requires the characters in the display panel to be small, resulting in poor visibility. Therefore, in the present invention, as described in FIG. 2 when the number of remaining vehicle compartments is 10 or more, the number of vehicles that are alternately displayed as “empty” is not displayed, and the vehicle heads toward the parking lot. To display moving arrows.
次に、図２で示したような駐車状態に応じた満空の表示をどのようにして行うかについて、説明したい。図３は、精算機から、残数表示が可能な本発明の駐車場看板のＬＥＤ表示盤の信号受信端末に送信する信号（データ）を示したものである。データは４ビットのデータより構成され、４本の信号線とコモンの電線の間に、５Ｖの電圧または無電圧を送ることになる。５Ｖは信号では１、無電圧は０と認識されるので、結局１６の異なったデータを送ることができる。なお、以降の説明では印加する電圧は、５Ｖとしているが、それに限定するものではなく、コントローラーに最適な既定の電圧でよい。 Next, it will be described how to display a full vacancy according to the parking state as shown in FIG. FIG. 3 shows signals (data) transmitted from the checkout machine to the signal receiving terminal of the LED display panel of the parking lot signboard of the present invention, which can display the remaining number. The data is composed of 4-bit data, and a voltage of 5 V or no voltage is sent between the four signal lines and the common wire. Since 5V is recognized as 1 in a signal and 0 as no voltage, 16 different data can be finally transmitted. In the following description, the applied voltage is 5 V, but is not limited thereto, and may be a predetermined voltage that is optimal for the controller.
図３で分かるように、本発明では４ビットの信号を表示のように割り当てた。すなわち、残車室数が１台のみの場合を、「００００」すなわち、４本の信号線に無電圧を送るようにした。残車室数が２台の場合は、「０００１」として、４本目の信号線のみに既定の電圧を印加する。以下、残車室数が９までは、「００１０」から、「１０００」の信号を送る。そして、ＬＥＤ表示のコントローラーは、これらの信号に対して、あらかじめ用意した表示である、「空」と「７台」といった表示を、決められた表示時間と時間間隔で交互に表示する。 As can be seen from FIG. 3, in the present invention, 4-bit signals are allocated as shown. That is, when the number of remaining vehicle compartments is only one, "0000", that is, no voltage is sent to four signal lines. When the number of remaining vehicle compartments is two, a predetermined voltage is applied to only the fourth signal line as “0001”. Hereinafter, a signal of “1000” is sent from “0010” until the number of remaining compartments is nine. In response to these signals, the LED display controller alternately displays, in advance, a display such as "sky" and "seven" at predetermined display times and time intervals.
そして、残車室数が１０を超えたら、その台数如何にかかわらず、「１００１」から「１１１０」までの信号を、順次一定の時間間隔で、ＬＥＤの表示盤のコントローラーに送る。
この信号に対するＬＥＤ表示盤の表示は、図４に示すようにしてある。すなわち、「１００１」の信号に対しては、表示盤の中央に右向きの矢印、次の「１０１０」の信号に対しては、矢印が少し右へ移動したもの、次の「１０１１」に対しては、矢印が左端から移動してくるようなもの、「１１００」から「１１１０」に対しては、矢印が右へ進んで、最後に「１００１」と同じく、」中央の矢印に戻るようになっている。したがって、これらを一定に時間間隔でサイクリックに表示させるようにして、この看板を見る人には、駐車場内に案内するような動きのある矢印の表示になる。
Then, when the number of remaining compartments exceeds 10, the signals from "1001" to "1110" are sequentially transmitted at regular time intervals to the controller of the LED display panel regardless of the number of the remaining compartments.
The display on the LED display panel for this signal is as shown in FIG. That is, for the signal of "1001", an arrow pointing right in the center of the display panel, for the next signal of "1010", the arrow has moved slightly to the right, and for the next signal of "1011", Is such that the arrow moves from the left end. From "1100" to "1110", the arrow moves to the right, and finally returns to the center arrow like "1001". ing. Therefore, these are cyclically displayed at regular time intervals, and a person who looks at the signboard displays a moving arrow that guides the user into the parking lot.
満車の場合は、図５に示すように「１１１１」の信号を受けるようにしてあるので、ＬＥＤ表示盤のコントローラーは、用意してある「満」の文字を連続して表示する。 When the vehicle is full, the signal of "1111" is received as shown in FIG. 5, so the controller of the LED display panel continuously displays the prepared "full" character.
図６は、精算機から駐車場看板の満空表示盤のコントローラーに前記信号（データ）を送る回路の配線図を示す。精算機２１は当該駐車場の車室に関するデータや、車室ごとの駐車を記録し保管管理するファイル３３を持っており、時々刻々変化する駐車場の残車室数を計算でできるようになっている。残車室の数は、４ビットのデータに変換され、精算機の端末３４から２８から３１で表示する４本の信号線に対応するビットのデータが駐車場看板のＬＥＤ表示盤のコントローラー２３に送られる。３２で示す信号線はコモンの線で、４本の信号線との間に既定の電圧が駐車状態に応じて印加される。ＬＥＤ表示盤のコントローラーは、前述したように、送られてくる信号に応じて、用意された台数の表示をする。 FIG. 6 shows a wiring diagram of a circuit for sending the signal (data) from the checkout machine to the controller of the full display panel of the parking lot signboard. The settlement machine 21 has data relating to the cabin of the parking lot, and a file 33 for recording and storing the parking of each cabin, and can calculate the number of remaining parking lots in the parking lot which changes every moment. ing. The number of remaining vehicle compartments is converted into 4-bit data, and the bit data corresponding to the four signal lines displayed by the terminals 34 to 28 to 31 of the checkout machine is transmitted to the controller 23 of the LED display panel of the parking lot signboard. Sent. A signal line indicated by 32 is a common line, and a predetermined voltage is applied between the signal line and the four signal lines according to the parking state. As described above, the controller of the LED display panel displays the prepared number according to the transmitted signal.
図６で、丸２４でくくった信号線２５，２６は、駐車場看板のＬＥＤ表示盤に「満」や「空」の文字を表示するのに用いる信号線で、２５、２６間が、無電圧の時は「空」の表示を、既定の電圧が印加されるときは、「満」が表示される。したがって、本発明では、残車室がある場合は、２５，２６間を無電圧にする時間を１．７秒にし、次の０．７秒間は、２７の丸でくくった４ビットの信号線からのデータに基づき、残車室数をＬＥＤ表示盤に表示する。ただし、残車室数が１０台以上の場合は、図４で示したように、残車室数の表示にあたる時間帯に、「１００１」から「１１１０」までの信号が順次送られるようにしたので、「空」の表示の後に、駐車場内へ誘導するような動く矢印が表示される。 In FIG. 6, signal lines 25 and 26 surrounded by a circle 24 are signal lines used to display characters of "full" and "empty" on the LED display panel of the parking lot signboard. “Empty” is displayed when a voltage is applied, and “full” is displayed when a predetermined voltage is applied. Therefore, according to the present invention, when there is a remaining vehicle compartment, the time during which no voltage is applied between 25 and 26 is set to 1.7 seconds, and for the next 0.7 seconds, 27 rounded 4-bit signal lines are used. The remaining vehicle number is displayed on the LED display panel on the basis of the data from. However, when the number of remaining compartments is 10 or more, as shown in FIG. 4, signals from "1001" to "1110" are sequentially transmitted in the time period corresponding to the display of the number of remaining compartments. Therefore, after the display of “sky”, a moving arrow that guides the user into the parking lot is displayed.
駐車場が満車の場合は、丸２４でくくった信号線に既定の電圧が印加され「満」の文字が連続して表示される。
When the parking lot is full, a predetermined voltage is applied to the signal line surrounded by the circle 24, and the characters "full" are displayed continuously.
実施例１においては、残車室数が１０を超える場合、精算機から「１００１」から「１１１０」までの信号を、満空表示盤ノコントローラーに順次送るようにしたが、精算機からたとえば「１００１」の信号を送った時には、満空表示盤のコントローラーが自動的に 「１００１」から「１１１０」までの信号を生成し、それによって満空表示盤に動く矢印を表示するようにしてもよい。 In the first embodiment, when the number of remaining cabins exceeds 10, signals from "1001" to "1110" are sequentially sent from the checkout machine to the full / vacancy display panel controller. When the signal of "1001" is sent, the controller of the full display panel may automatically generate signals from "1001" to "1110", thereby displaying the moving arrow on the full display panel. .
満空表示盤の満、空、及び台数と動く矢印の色は、視認性が良いように適宜異なった色や秒数で表示するようにしてもよい。 The full, empty, and number of the full and empty display boards and the color of the moving arrow may be displayed in different colors or seconds as appropriate so that visibility is good.
実施例１では、４ビットの信号が１の時に精算機から満空表示盤のコントローラーに５Vの電圧を送り、０の時は無電圧にすると記述したが、精算機側の出力端子板で、信号が１の場合には当該通信線と、コモン線３１間の接点をオンとし、０の時はオフとし、LED表示盤のコントローラーの方でLED表示に必要な電圧を加えるようにしてもよい。 In the first embodiment, it is described that when the 4-bit signal is 1, a voltage of 5 V is sent from the checkout machine to the controller of the empty display panel, and when the signal is 0, no voltage is applied. When the signal is 1, the contact between the communication line and the common line 31 is turned on, and when the signal is 0, the contact is turned off, and the controller of the LED display panel may apply a voltage required for LED display. .
実施例１では４ビットの信号を精算機から満空表示盤まで通信する手段として、有線の信号線４本を用いたが、同様の通信が確保されるのであれば、信号線の本数は問わないものとし、信号線は有線乃至無線であってもよい。 In the first embodiment, four wired signal lines are used as means for communicating a 4-bit signal from the checkout machine to the full display panel. However, the number of signal lines is not limited as long as similar communication is ensured. The signal line may be wired or wireless.
本発明は、時間貸し駐車場で駐車可能な残車室数の表示を、従来のＬＥＤ満空表示盤に、「空」の表示と、残車室数を７台という風に「台」の文字付きの表示を、設定した表示時間及び時間間隔で交互に表示するようにしたほか、１０台以上の残車室がある場合には、「空」の文字と、駐車場に誘導するような移動する矢印の表示を交互に表示するようにしたので、従来の満空表示だけに比べて、駐車場の混み具合という新たな情報を駐車場の利用客に提供できるようにした。これにより、駐車場経営者にとっては、稼働率の向上、利用者にとっては、焦らず、駐車しやすい駐車場を選べるなどの利便性が高まる効果がある。そのような駐車場は、産業上も大いに活用される。
According to the present invention, the display of the number of remaining rooms that can be parked in the hourly parking lot is displayed on a conventional LED vacancy display panel as “empty”, and the number of remaining rooms is “7” in the wind of seven. The display with text is displayed alternately at the set display time and time interval. In addition, when there are more than 10 remaining rooms, the text "empty" and the guide to the parking lot Since the moving arrows are alternately displayed, new information such as the degree of congestion of the parking lot can be provided to the parking lot users as compared with the conventional full display. This has the effect of improving the occupancy rate for the parking lot manager and increasing the convenience for the user, such as choosing a parking lot that is easy to park without being impatient. Such parking lots are also utilized industrially.
１ 残車室数を表示した満空表示盤の例
２ 残車室数と交互に表示される「空」の表示の例
３ ＬＥＤ表示盤の「空」の文字
４ 残車室数が１０以上ある場合に、「空」の文字と交互に表示される矢印の表示
５ 各矢印に対応した信号線のデータ（４ビット）
１０ ＬＥＤ表示盤の「満」の表示の例
１１ 「満」表示の場合の信号（４ビット）
２１ 精算機
２２ 満空表示盤付駐車場看板
２３ ＬＥＤ表示盤のコントローラー
２４ 満空切り替え線（まとめ）
２５，２６ 満空切り替え信号線
２７ 残車室数信号線（まとめ）
２８，２９．３０．３１ 残車室数、誘導矢印を表示させるための４ビットの信号線
３１ ４ビット信号線のコモン線
３３ 精算機内の車室管理データファイル
３４ 精算機から駐車場看板へのデータ出力端子板
３５ 駐車場看板の満空表示部分
1 Example of a full vacancy display panel showing the number of remaining rooms 2 Example of “empty” display alternately displayed with the number of remaining rooms 3 Character “empty” on the LED display panel 4 Number of remaining rooms is 10 or more In some cases, the display of arrows alternately displayed with "empty" characters 5 Data of signal lines corresponding to each arrow (4 bits)
10 Example of “full” display on LED display panel 11 Signal in case of “full” display (4 bits)
21 Settlement machine 22 Parking lot signboard with full vacancy display panel 23 Controller of LED display panel 24 Full vacancy switching line (summary)
25, 26 full / empty switching signal line 27 remaining vehicle number signal line (summary)
28, 29.30.31 4-bit signal line 31 for displaying remaining vehicle number and guidance arrows 31 Common line 33 for 4-bit signal line Vehicle room management data file 34 in checkout machine From checkout machine to parking lot signboard Data output terminal board 35 Full vacancy display part of parking signboard
Claims (2)
2. A parking lot signboard with a full vacancy display board according to claim 1, wherein data of the parking status of the parking lot signboard to the electronic full vacancy display board is transmitted as a 4-bit signal from the checkout machine, and is represented by 4 bits. Full data display panel, wherein the number of data is assigned to the display of the number of "full", "sky" and "1" to "9" and five types of "arrows" on the electronic display panel. Parking sign with
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