baber/WOPTO huggingface dataset:
Patent JP-WO2018062094-A1 (JP)
Title: ポンプ装置
IPC: H02K7/14
Filed: 2017-09-25
Abstract: ポンプ装置１００１は、シャフト４１と、シャフト４１を回転させるモータ部２００１と、モータ部２００１によってシャフト４１を介して駆動され、オイルを吐出するポンプ部３００と、を有する。ポンプ装置１００１は、オイルをモータ部２００１の吸入口１４０２ｃより吸入する第１流路と、ステータ５０００の外周面より径方向内側に設けられた第２流路と、ステータ５０００とロータ４００１との間に設けられた第３流路と、第３流路からポンプ部３００内の負圧領域へ繋がる第４流路とを有し、ポンプ部３００は、第４流路からポンプ部３００へ流れるオイルを吐出口３２ｄから吐出する。
Patent JP-WO2018066629-A1 (JP)
Title: 銅化合物−グラフェンオキサイド複合体
IPC: B01J37/34
Filed: 2017-10-05
Abstract: 水素の製造に使用することができる、新規な銅化合物−グラフェンオキサイド複合体を提供する。銅化合物とグラフェンオキサイドとの複合体であって、赤外吸収スペクトルにおいて、Ｏ−Ｈ基及びＣ＝Ｏ基に由来する吸収が実質上存在せず、Ｃ−Ｏ基に由来する吸収が存在する、銅化合物−グラフェンオキサイド複合体。
Patent JP-WO2018079292-A1 (JP)
Title: 非水電解質二次電池用電極及び非水電解質二次電池
IPC: H01M4/13
Filed: 2017-10-13
Abstract: 本開示は安定した開放電圧を有する非水電解質二次電池を提供する。実施形態の一例である非水電解質二次電池用電極は、帯状の集電体と、集電体の両面に形成された合材層と、集電体の両面が露出した露出部に接合されると共に、集電体の幅方向の両端を構成する一端及び他端のうち一端から延出したリードとを備える。実施形態の一例である非水電解質二次電池用電極には、集電体の少なくとも一方の面において、集電体の幅方向に沿って露出部の一端側に隣接して合材層が形成されている。
Patent JP-WO2018097127-A1 (JP)
Title: 肝芽細胞から胆管上皮前駆細胞への段階的誘導方法
IPC: C12N5/071
Filed: 2017-11-21
Abstract: 肝芽細胞をＴＧＦβおよびＥＧＦを含む培地で培養する工程を含む、胆管上皮前駆細胞の製造方法、並びに肝芽細胞または胆管上皮前駆細胞を、HGF、EGF、Notch阻害剤およびGSK３阻害剤を含む培地にて、三次元スキャホールド材の存在下で培養する工程を含む、胆管上皮前駆細胞三次元管腔様組織の構築方法を提供する。
Patent JP-WO2018101279-A1 (JP)
Title: 情報処理装置及び情報処理方法、並びにコンピュータ・プログラム
IPC: H04N21/442
Filed: 2017-11-28
Abstract: 【課題】ユーザの身体動作に応じたオブジェクトの変位情報に基づいて出力を制御する情報処理装置を提供する。【解決手段】情報処理装置は、ユーザが乗っているオブジェクトの所定の部位のユーザの身体動作に応じた３次元的な変位に対応する変位情報を所定の部位の位置情報に基づいて取得する変位情報取得部と、取得された変位情報に基づいて出力部が所定の出力を行うように制御する出力制御部を備える。オブジェクトは例えばユーザが着座可能でシートバックを有し、変位情報取得部はシートバックの前後方向、左右方向及び上下方向のうち少なくとも１つの位置変化を取得する。【選択図】図１９
Patent JP-WO2018109905-A1 (JP)
Title: 往復動ポンプ
IPC: F04B43/02
Filed: 2016-12-15
Abstract: ポンプヘッド５の第２接続口９及び第１接続アダプタ２０Ａの第３接続口２１の内側には、バルブカートリッジ３０との接続方向に延びる少なくとも一つのリブ９ｃ，２１ｃがそれぞれ設けられ、バルブカートリッジ３０の下部外周部には、接続方向に延びリブ９ｃ，２１ｃが遊挿される少なくとも一つのスリット４１が設けられ、第１接続口８の内径をｉｄ１、第２接続口９の内径をｉｄ２ｂ、第２接続口９のリブ９ｃの頂部内接径をｉｄ２ｔ、第３接続口２１の内径をｉｄ３ｂ、第３接続口２１のリブ２１ｃの頂部内接径をｉｄ３ｔ、第４接続口２３の内径をｉｄ４とし、バルブカートリッジ３０の下部外周部の外径をｏｄ１ｔ、下部外周部のスリット４１の谷部外径をｏｄ１ｂ、バルブカートリッジ３０の上部外周部の外径をｏｄ２とすると、（ｉｄ２ｂ，ｉｄ３ｂ）＞ｏｄ１ｔ＞（ｉｄ１，ｉｄ４）＞ｏｄ２＞（ｉｄ２ｔ，ｉｄ３ｔ）＞ｏｄ１ｂである。
Patent JP-WO2018159372-A1 (JP)
Title: キノフタロン化合物
IPC: C09B67/20
Filed: 2018-02-20
Abstract: 本発明が解決しようとする課題は、優れた輝度と着色力を兼備する新規黄色顔料を提供することにある。下記式（１）：     （式（１）中、Ｘ １ 〜Ｘ １６ は各々独立に水素原子又はハロゲン原子であり、Ｙは水素原子又はハロゲン原子であり、Ｚは低級アルキレン基である）で表されるキノフタロン化合物を提供することにより、上記課題を解決する。さらに、式（１）で表されるキノフタロン化合物を含有する着色剤、及び当該着色剤を含有する着色組成物を提供する。
Patent JP-WO2018143409-A1 (JP)
Title: 水耕栽培用容器、水耕栽培用カバー、水耕栽培装置および水耕栽培方法
IPC: A01G31/00
Filed: 2018-02-02
Abstract: 本発明を適用した水耕栽培装置（１）は、容器（１０）、カバー（５０）、容器（１０）の中空部（１２ｓ）に養液（Ｗ）を供給する養液供給部（２０）、水位調整機構（６０）を備える。容器（１０）は、管状に形成される。カバー（５０）は、根圏（Ｒ）を保護し、容器（１０）の開口（１４）を覆うことができる大きさを有する。水位調整機構（６０）は、容器（１０）に連結され、中空部（１２ｓ）における養液（Ｗ）の水位を調整できる。
Patent JP-WO2018151302-A1 (JP)
Title: 光学装置
IPC: G02B23/26
Filed: 2018-02-19
Abstract: 単一の光学系を用いて、顕微鏡レベルのミクロ撮影等と、俯瞰レベルのマクロ撮影等とを可能にした光学装置を提供する。物体を撮影する光学装置であって、物体の像を結像させるための撮像光学系１ａと、撮像光学系１ａによって結像された画像を電気信号に変換する撮像素子６と、撮像光学系１ａによる撮像倍率を変更する倍率変更手段と、を備え、倍率変更手段は、撮像光学系１ａにより物体のミクロ結像を撮像素子６に結像するミクロ結像モードと、撮像光学系１ａにより物体の虚像を撮像素子６に結像する虚像モードとを切換えることによって、倍率を変更する切換手段を有する。
Patent WO-2019167486-A1 (WO)
Inventor: MIYAZAKI NORIKAZU
IPC: G02F1/035
Filed: 2019-01-23
Abstract: The purpose of the present invention is to improve the high frequency characteristics and increase the stability of an optical modulator. The optical modulator comprises: an optical element substrate (102) that includes an optical waveguide and a plurality of electrodes for controlling light waves transmitted through the optical waveguide; and a housing (104) that stores the optical element substrate. The housing is provided with a plurality of signal input terminals (120, etc) at the bottom of the housing, with each electrically connected to each of the plurality of electrodes. The plurality of signal input terminals, each electrically connected to each of the plurality of electrodes provided on the optical element substrate, is separated to face each other with the optical element substrate interposed therebetween.
Patent WO-2019159641-A1 (WO)
Title: Display device and manufacturing method for same
Inventor: SHINYA KIMIHIRO
IPC: G02B5/20
Filed: 2019-01-24
Abstract: A display device comprising a light emission element, wherein light takeout efficiency and luminance view angle characteristics are improved. The display device comprises a light emission element, a light condensing lens, and a scattering lens. The light emission element emits light. The light condensing lens condenses the light emitted from the light emission element. The scattering lens scatters the light condensed by the light condensing lens. By combining the light condensing lens and the scattering lens, light takeout efficiency and luminance view angle characteristics are improved.
Patent WO-2019202821-A1 (WO)
Inventor: KOSUGI MASANORI
IPC: G08G1/00
Filed: 2019-02-06
Abstract: 【課題】移動体の貸し出し制御を代理すると共に、移動体の貸し出し制御に対する料金を動的に設定することが可能な、情報処理装置、および情報処理システムを提供する 【解決手段】移動体の貸し出しに関する制御処理を行う貸出制御部と、移動体の貸し出しに関する貸出情報に基づき取得される指標に基づいて、制御処理に対する制御料金を動的に設定する料金設定部と、行われた制御処理の内容と、設定された制御料金との一方または双方を含む制御結果情報を、所定の外部装置へ送信させる送信制御部と、を備える、情報処理装置が、提供される。
Patent WO-2019163602-A1 (WO)
Title: Method for purifying target region, detection method, and method for determining cancer
Inventor: HAYASHIDA YUKINOBU
IPC: C12N9/16
Filed: 2019-02-13
Abstract: The problem addressed by the present invention is to provide a method capable of purifying a target region simply, accurately, and in a short time. The present invention relates to a "method for purifying a target region in double-stranded DNA and a detection method, and a method for determining cancer."
Patent WO-2020039615-A1 (WO)
Title: Electromagnetic relay
Inventor: MORI SHINGO
IPC: H01H50/20
Filed: 2019-02-19
Abstract: An electromagnetic relay comprising: a fixed contact; a movable contact piece; a drive shaft; an electromagnetic relay; and a positioning part. The movable contact piece comprises a movable contact disposed facing the fixed contact, and can move in a first direction coming into contact with the fixed contact and a second direction separating from the fixed contact. The drive shaft is connected to the movable contact piece. The electromagnetic relay comprises a movable iron core connected so as to be able to move together with the drive shaft, and can switch between a contact state in which both the drive shaft and the movable iron core are moved and the movable contact contacts the fixed contact, and a separated state in which the movable contact separates from the fixed contact. In the separated state, the positioning part positions either the drive shaft or the movable iron core. Either the drive shaft or the movable iron core has a first inclined part that contacts the positioning part, in the separated state.
Patent WO-2019172363-A1 (WO)
Title: Information processing device, object measurement system, object measurement method, and program storage medium
Inventor: KITAGAWA TAKEHARU
IPC: G06T7/60
Filed: 2019-03-07
Abstract: In order to improve the certainty of a measurement value obtained by measuring the length, etc., of an object to be measured, on the basis of a photographed image, an information processing device 60 is provided with a detection unit 61 and a calculation unit 62. The detection unit 61 detects, as a measurement use point, a portion that is used for prescribed length measurement of the object, in each of sectioned regions, in an object image included in the photographed image including the photographed object to be measured, set on both sides with respect to a reference line which is set for the object image and by which the object image is sectioned. The calculation unit 62 calculates the length of a segment, in each of the sectioned regions, between the measurement use point and the intersection point between the reference line and a perpendicular line passing through the measurement use point and being perpendicular to the reference line. Further, the calculation unit 62 calculates a length, in the object, to be measured, by adding together the lengths of the segments calculated in the respective divided regions of the object to be measured.
Patent WO-2019181759-A1 (WO)
Title: 鉛蓄電池
Inventor: MORISHIMA SHOYA
IPC: H01M4/62
Filed: 2019-03-15
Abstract: 鉛蓄電池は、正極板と負極板とを備える。正極板は、鉛合金からなる集電体と、集電体に支持された正極材料とを有する。正極材料の全細孔容量は、０．１７２ｃｍ３／ｇ未満である。正極材料は、繊維を含有しており、該繊維の水分含有率は、２８％以上である。
Patent WO-2019181984-A1 (WO)
Inventor: HAMURA Mika
IPC: C07C41/18
Filed: 2019-03-19
Abstract: Branched monodispersed polyethylene glycol represented by formula (1). (X 1  is a functional group that reacts with a functional group present in a biofunctional molecule to form a covalent bond; n is an integer of 4-50 and represents the number of repeating units of ethylene oxide units; L 1  represents a single bond, -NH-, -L 2 -(CH 2 ) m1 -, or -L 2 -(CH 2 ) m1 -L 3 -(CH 2 ) m2 -; L 2  represents an ether bond, an amide bond, a urethane bond, or a single bond; L 3  represents an ether bond, an amide bond, or a urethane bond; and m1 and m2 each independently represent an integer of 1-5.)
Patent WO-2019194086-A1 (WO)
Title: Optical transmission fiber glass and optical transmission fiber
Inventor: HACHITANI YOICHI
IPC: G02B6/02
Filed: 2019-03-29
Abstract: Provided is an optical transmission fiber glass characterized in that the fiber glass substantially does not contain Pb, As, or Ti; has a refractive index nd in the range from 1.60 to 1.70; and contains as glass components at least SiO 2 , B 2 O 3 , BaO, La 2 O 3 , ZrO 2 , and ZnO, wherein, expressed in mass%, the total content of the SiO 2  and B 2 O 3  is 25% to 50%, the content of BaO is 10% to 50%, and the content of La 2 O 3  is 6% to 30%.
Patent WO-2020208672-A1 (WO)
Inventor: TAKEUCHI IPPEI
IPC: G01N1/10
Filed: 2019-04-08
Abstract: A sample collection device (1) is provided with a sample collection chip (2) which has at a tip thereof a suction port (3) for sucking a sample and has thereinside a flow path (4) for holding the sample sucked through the suction port (3), wherein the sample collection chip (2) is configured to be broken through bending at a prescribed breaking position and divided into a plurality of pieces in order to separate and take out a part of the flow path (4) from the remaining part, and a protective layer (24) for preventing scattering of the sample from divided surfaces (26) of the flow path (4) exposed to a broken surface of the sample collection chip (2) is provided so as to cover the breaking position of the sample collection chip (2).
Patent WO-2019203059-A1 (WO)
Inventor: NADA MASAHIRO
IPC: H01L31/10
Filed: 2019-04-09
Abstract: La présente invention comporte une première couche semi-conductrice (102) qui est composée d'un semi-conducteur de type p et est formée sur un substrat (101), et une seconde couche semi-conductrice (103) qui est composée d'un semi-conducteur de type n et est formée sur le substrat (101). La présente invention comporte également une couche de déplacement de porteurs (104) qui est composée d'un semi-conducteur non dopé et est formée entre la première couche semi-conductrice (102) et la seconde couche semi-conductrice (103), et une couche d'absorption de lumière de type n (105) qui est composée d'un semi-conducteur de type n et est formée entre la seconde couche semi-conductrice (103) et la couche de déplacement de porteurs (104). La couche d'absorption de lumière de type n (105) est configurée pour avoir une énergie de bande interdite inférieure à celles des autres couches.
Patent WO-2020003726-A1 (WO)
Title: Mold frame unit for concrete stepped section and concrete structure construction method
Inventor: MACHITANI YUKIHIRO
IPC: E04B2/86
Filed: 2019-04-25
Abstract: Provided are: a mold frame unit suitable for efficiently forming a concrete structure having a stepped structure; and a construction method. A mold frame unit X according to the present invention is provided with an embedded panel 10, bolts 20, and fixtures 30. The embedded panel 10 has, for example, a surface 11, which includes a surface having improved adhesiveness, a surface 12 on the reverse side of the surface 11, and bolt penetration holes 13. Each of the fixtures 30 has: an end surface 31 for abutting the embedded panel; and a screw hole section 32 into which the bolts can be screwed from the end surface 31 side, and is configured to be connectable to an assembly location side connection member. A construction method according to the present invention is a method for forming a concrete structure including a stepped structure of a first upper surface and a second upper surface higher than the first upper surface, the method including: a step for assembling a required number of panels including the embedded panel 10 of the mold frame unit X and forming a concrete raw material filling partition; a step for supplying the concrete raw material inside the partition up to a first upper surface formation height; and a step for further supplying the concrete raw material inside the partition up to a second upper surface formation height.
Patent WO-2019230330-A1 (WO)
Title: Body temperature adjusting device
Inventor: MURAMATSU KENSHIRO
IPC: A61F7/00
Filed: 2019-05-10
Abstract: This body temperature adjusting device (10) which adjusts the body temperature of a human body (BD) is provided with: a heater (30) which generates heat in a state in which the body temperature adjusting device (10) is attached to the human body; and a heat control unit (51) which adjusts the amount of heat generated by the heater. The heater control unit is configured to perform a sleep control which is a control for adjusting the amount of heat generated by the heater so as to lower the body temperature at a preset sleep time.
Patent WO-2020234976-A1 (WO)
Inventor: TAKAI MANATO
IPC: B66B5/00
Filed: 2019-05-20
Abstract: Provided are a communication system to reduce the calculation load of an elevator for encrypting communications, a key exchange terminal, an elevator, a remote monitoring server, and a communication program. In the communication system (1), a first symmetric key (K1) is generated on the basis of the movement of a car (7) measured by an elevator (2) having the car (7). In a key exchange terminal (20) that moves with the car (7), a second symmetric key (K2) is generated on the basis of the movement of the key exchange terminal (20) measured simultaneously with the measurement of the movement by the elevator (2). The second symmetric key (K2) is transmitted from the key exchange terminal (20) via a secure second communication route (27) to a remote monitoring server (21). The data transmitted between the elevator (2) and the remote monitoring server (21) is encrypted by the symmetric key encryption method using either the first symmetric key (K1) or the second symmetric key (K2).
Patent WO-2019239815-A1 (WO)
Title: Secret-key sharing system and secret-key sharing method
Inventor: FUJIWARA MIKIO
IPC: H04L9/12
Filed: 2019-05-21
Abstract: [Problem] To provide a secret-key sharing system and a secret-key sharing system method that perform sharing of a secret key between a transmitter device and a formal receiver device by using optical space communication. [Solution] A transmitter device 11 generates a secret key of optical space communication and RF band communication and distributes the secret key to a formal receiver device 14 by the optical space communication and the RF band communication. The transmitter device 11 receives information on the secret key selected by the formal receiver device 14, generates an optical-space communication secret-key and an RF-band communication secret-key, generates a final secret key to be shared with the formal receiver device 14 on the basis of a shared random number sequence included in the generated optical-space communication secret-key and the RF-band communication secret-key, and shares the final secret key with the formal receiver device 14.
Patent WO-2020245901-A1 (WO)
Inventor: HISANO SHINYA
IPC: H02J3/14
Filed: 2019-06-04
Abstract: This power control device performs power supply to each of a plurality of loads (231 to 234) by a time-proportional control, wherein the maximum load factor and a current value or a power value during on-control are made to correspond to each of the plurality of loads. The power control device 1 is characterized by being provided with a power supply automatic allocation unit 12 that performs: processing of calculating a combination of the loads in which the total value of the current values or the power values during the on-control, which are made to correspon to the respective loads, does not exceed a limiter value that specifies an upper limit to the total of the current values or the power values output to the respective loads; processing of setting a period in which the respective loads in the combination are simultaneously on-controlled and subtracting the period from the maximum load factor of each of the loads in the combination; and automatic allocation processing on the power supply to each load by repeating above each processing until all the maximum load factors of the respective loads become zero.
Patent WO-2019245016-A1 (WO)
Inventor: TANIGAWA KAZUYA
IPC: G06Q10/10
Filed: 2019-06-21
Abstract: The objective of the present invention is to set a standard item name for item names that are used with the same meaning in a plurality of forms.
A standard item name setting device 10 is provided with: a standard item name storage unit 20A for storing information relating to standard item names; an item name acquiring unit 21 for acquiring a plurality of item names mentioned in a plurality of forms; a first classifying unit 23 for classifying the plurality of item names into any of one or a plurality of classifications by type; a second classifying unit 24A for classifying the item names that have been classified into classifications by type, into one or a plurality of synonymous item groups on the basis of a degree of synonymity; an evaluating unit 25 for evaluating a degree of standardness of the item names classified into each synonymous item group, on the basis of a degree of coincidence with the standard item names stored in the standard item name storage unit 20A; a standard item name selecting unit 27 for selecting a standard item name on the basis of the degree of standardness, from among the item names that have been classified into the synonymous item group; and an updating unit 28 for updating the information in the standard item name storage unit 20A on the basis of the standard item name selected by the standard item name selecting unit 27.
Patent WO-2020004552-A1 (WO)
Title: Spectacle lens
Inventor: QI HUA
IPC: G02B1/11
Filed: 2019-06-27
Abstract: Provided is a spectacle lens 1 for causing a light beam incident from an object-side surface 3 to be emitted from an eye-side surface 4 and to converge at a predetermined position A, wherein the spectacle lens 1 is provided with a lens base material 2 having a plurality of base material convex parts 6 on the object-side surface 3 and/or the eye-side surface 4, and a coating for covering the surface having the base material convex parts 6, the base material convex parts 6 and a convex part on the outermost surface of the spectacle lens 1 on the side thereof having the base material convex parts 6 having a light beam convergence characteristic in common.
Patent WO-2020049863-A1 (WO)
Inventor: TOMIGA TAKAMITSU
IPC: G03F7/004
Filed: 2019-07-09
Abstract: 樹脂（Ａ）と、溶剤（Ｂ）と、光酸発生剤とを含有し、樹脂（Ａ）は、ホモポリマーとしたときのガラス転移温度が５０℃以下であるモノマーを由来とする、非酸分解性の繰り返し単位（ａ１）と、酸分解性基を有する繰り返し単位（ａ２）とを含み、かつ、芳香族環を有する繰り返し単位を有し、溶剤（Ｂ）は、沸点が１３５℃以下で、かつ粘度が１．５ｍＰａ・ｓ以下である、感活性光線性又は感放射線性樹脂組成物、上記組成物を用いたレジスト膜、パターン形成方法、及び電子デバイスの製造方法。
Patent WO-2021024416-A1 (WO)
Inventor: NARAHARA MASATOSHI
IPC: C12M1/00
Filed: 2019-08-07
Abstract: Provided is a flow cell adjustment method which is for increasing analysis throughput by fixing biopolymers having a high molecular weight to a flow cell at high density, the method involving: injecting a solution having biopolymers 313 dissolved therein to the flow cell comprising a lower substrate 304, an upper substrate 305, a flow channel 312, and the like; centrifuging the flow cell to which the biopolymer-dissolved solution is injected in order to fix the biopolymers 313 on the lower substrate 304; and thereafter washing out the biopolymers unfixed to the substrates from the flow cell.
Patent WO-2021029037-A1 (WO)
Inventor: FUKAZAWA NAOHITO
IPC: G05B19/4155
Filed: 2019-08-14
Abstract: Provided are a machine learning device that includes: a learning data set storage unit 12 for storing a plurality of sets of a learning data set including three-dimensional data on unprocessed workpieces, three-dimensional data on one or more partially processed workpieces, three-dimensional data on finished workpieces, and data on the order in which the one or more partially processed workpieces are generated; a learning unit 13 that, by having a plurality of learning data sets inputted thereinto, learns a learning model that infers from the unprocessed workpiece data and the finished workpiece data each shape of the plurality of partially processed workpieces and the order in which said workpieces are generated, indicating the process from the unprocessed workpiece until the finished workpiece is obtained; and a learned model storage unit 14 that stores the learning model learned by the learning unit 13. Also provided are a corresponding machine learning method and data processing system. This makes it possible to provide the machine learning device, the data processing system, and the machine learning method for automating at least a part of the process design based on the data on workpiece shape.
Patent WO-2021038620-A1 (WO)
Inventor: TANAKA YUJI
IPC: H04B7/08
Filed: 2019-08-23
Abstract: This adaptive array antenna system (1) is configured to receive a desired wave that has arrived through K time slots allocated to K transmitting stations (10 1 -10 K ), respectively. In the adaptive array antenna system (1), an adaptive control device (31) comprises a correlation matrix calculation unit (52), a correlation matrix storage unit (53), an inverse matrix calculation unit (54), and a weight coefficient calculation unit (51). The inverse matrix calculation unit (54) acquires, from the correlation matrix storage unit (53), a correlation matrix calculated at a previous time for another time slot other than a current time slot, regards the acquired correlation matrix as an interference noise correlation matrix, and calculates an inverse matrix of the interference noise correlation matrix. The weight coefficient calculation unit (51) calculates, using the inverse matrix, values of a plurality of weight coefficients used in a beamforming unit (24).
Patent WO-2020045353-A1 (WO)
Inventor: FUJITA HIROKI
IPC: G08G1/08
Filed: 2019-08-26
Abstract: Provided is a base station which is disposed on a road and which comprises: a receiving part for receiving, from a vehicle at specified periods, a message including information elements indicating the position and/or speed of the vehicle; and a control part for detecting the approach of the vehicle according to the reception of the message. On the basis of the message, the control part identifies the speed of the vehicle, and on the basis of at least the speed of the vehicle, controls a traffic safety device disposed on the road.