CN112383904B - Pair-free quick peripheral calling method and device - Google Patents
Pair-free quick peripheral calling method and device Download PDFInfo
- Publication number
- CN112383904B CN112383904B CN202011139619.2A CN202011139619A CN112383904B CN 112383904 B CN112383904 B CN 112383904B CN 202011139619 A CN202011139619 A CN 202011139619A CN 112383904 B CN112383904 B CN 112383904B
- Authority
- CN
- China
- Prior art keywords
- peripheral
- mobile terminal
- equipment
- calling
- internet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a technical scheme of a pairing-free quick peripheral calling method and a device, which comprises the following steps: automatically establishing connection with an Internet of things gateway arranged at an external device in a near field communication mode according to a request of a mobile terminal application program; acquiring the equipment ID and/or the client ID of the peripheral equipment according to the near field communication information; the mobile terminal application program sends a peripheral calling service request to the cloud server according to the request of the mobile terminal application program, the equipment ID and/or the client ID; and completing a peripheral calling service request through the cloud server and sending the peripheral calling service request to the mobile terminal application program. The invention has the beneficial effects that: the internet of things technology is introduced into the use scene of bank peripherals, the internet of things technology and the cloud service technology are comprehensively used, the purpose that the peripherals are used without pairing and are used in a walking-after-use mode is achieved, the operation convenience and the sharing utilization rate of the peripherals are improved, and better experience that mobile equipment uses financial peripherals is brought.
Description
Technical Field
The invention relates to the field of computer internet of things, in particular to a pairing-free quick peripheral calling method and device.
Background
At the present time when the mobile internet is in the mainstream, more and more banking businesses are switched to be handled by using a hall tablet and a mobile phone bank. Many banking businesses can be performed in compliance only by using professional financial peripherals, so that a large number of scenes that the financial peripherals need to be called by mobile equipment exist.
At present, the bank financial peripheral is mainly used for one-to-one connection in a USB (universal serial bus) connection or Bluetooth pairing connection mode and other modes through the peripheral and intelligent equipment such as a mobile phone, a tablet and the like, and the intelligent equipment is called by installing a peripheral drive or using a peripheral dynamic link library embedded in application. For the mobile equipment, the Bluetooth pairing connection is firstly carried out through system setting to connect the peripheral equipment, and then the peripheral equipment enters the application for use. When the peripheral equipment needs to be called by other mobile equipment, the pairing needs to be released firstly.
The peripheral equipment is paired through the Bluetooth, equipment connection can be carried out only by pairing equipment and filling in pairing codes, and the operation is complex. Also, an additional disarming operation is required when the pairing is disarmed. Bluetooth pairing is based on a one-to-one connection relation between mobile equipment and peripherals, the peripherals are all monopolized by the mobile equipment in the whole process of business processing of mobile application, other clients cannot use the idle peripherals, idle waste of the peripherals is caused, and the utilization rate is low.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides a pairing-free quick peripheral calling method and a pairing-free quick peripheral calling device, which are combined with a networking technology and a cloud service technology to achieve the pairing-free use, the use-once-walking-after-use sharing use of peripherals, improve the operation convenience and the sharing use rate of the peripherals and bring better experience of using financial peripherals by mobile equipment.
The technical scheme of the invention comprises a pairing-free rapid peripheral calling method, which is characterized by comprising the following steps: s100, automatically establishing connection with an external Internet of things gateway in a near field communication mode according to a request of a mobile terminal application program; s200, acquiring the equipment ID and/or the client ID of the peripheral equipment according to the near field communication information; s300, the mobile terminal application program sends a peripheral calling service request to the cloud server according to the request of the mobile terminal application program, the equipment ID and/or the client ID; and S400, completing a peripheral calling service request through the cloud server and sending the peripheral calling service request to the mobile terminal application program.
According to the unpaired quick peripheral invoking method, the near field communication mode comprises NFC communication and Bluetooth communication.
According to the unpaired fast peripheral invoking method, S100 includes: the connection is automatically established between the NFC equipment of the mobile terminal and the NFC label based on the NTAG standard, and label information of the NFC label corresponding to the peripheral equipment is written into the gateway of the Internet of things.
According to the unpaired fast peripheral invoking method, S200 includes: and acquiring label information sent by the gateway of the Internet of things through the mobile terminal, and analyzing and acquiring the ID of the corresponding peripheral equipment and/or the ID of the client.
According to the unpaired fast peripheral invoking method, S100 includes: the Bluetooth equipment through the mobile terminal is connected with the Bluetooth module based on iBeacon and arranged on the peripheral equipment, the signal sensing device based on the Bluetooth module copper based on iBeacon is used for performing connectionless pairing, and the distance is calculated through the Bluetooth signal RSSI value of the mobile terminal to obtain the Bluetooth MAC address of the closest equipment.
According to the unpaired fast peripheral invoking method, the distance calculation through the RSSI value of the Bluetooth signal of the mobile terminal comprises the following steps: by passing
And calculating the distance d between the mobile terminal and the peripheral equipment, wherein A is the RSSI absolute value at the distance of 1 meter from the equipment, and n is an environment attenuation factor.
According to the unpaired fast peripheral invoking method, S200 includes: and according to the Bluetooth MAC address, acquiring the peripheral equipment ID and/or the client ID corresponding to the MAC address through the cloud server.
The unpaired fast peripheral invoking method, wherein the method further comprises: and processing the request and the peripheral calling of each mobile terminal application program in a message queue telemetry transmission mode.
The unpaired fast peripheral invoking method, wherein the method further comprises: the peripheral calling is realized through a micro-service calling mode based on an https mode.
The technical scheme of the invention also comprises a pairing-free rapid peripheral calling device, which is characterized by comprising a mobile terminal, peripheral equipment, a cloud server and an Internet of things gateway, wherein the mobile terminal comprises a mobile terminal application program; the peripheral equipment is provided with an Internet of things gateway, and the Internet of things gateway comprises a Bluetooth module and an NFC tag; the mobile terminal detects an Internet of things gateway through a corresponding near field communication mode according to the request of the mobile terminal application program, acquires the equipment ID and/or the client ID of the peripheral equipment through signal sensing, and sends a peripheral calling service request to the cloud server; and the cloud server completes task scheduling and task processing according to the request, the equipment ID and/or the client ID sent by the mobile terminal, and sends the result to the mobile terminal.
The beneficial effects of the invention are as follows: the internet of things technology is introduced into the use scene of bank peripherals, the internet of things technology and the cloud service technology are comprehensively used, the purpose that the peripherals are used without pairing and are used in a walking-after-use mode is achieved, the operation convenience and the sharing utilization rate of the peripherals are improved, and better experience that mobile equipment uses financial peripherals is brought.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 illustrates an overall flow diagram according to an embodiment of the invention;
FIG. 2 is an interaction diagram according to an embodiment of the present invention;
FIG. 3 is a flow diagram illustrating peripheral invocation according to an embodiment of the present invention;
fig. 4 is a block diagram showing the connection of the apparatus according to the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the essential numbers, and greater than, less than, etc. are understood as including the essential numbers.
In the description of the present invention, the consecutive reference numbers of the method steps are for convenience of examination and understanding, and the implementation order between the steps is adjusted without affecting the technical effect achieved by the technical solution of the present invention by combining the whole technical solution of the present invention and the logical relationship between the steps.
In the description of the present invention, unless otherwise specifically limited, the terms such as set forth and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meanings of the above terms in combination with the detailed contents of the technical solutions.
Interpretation of terms:
NFC: near field communication;
NTAG: an NFC specification tag;
bluetooth (2): bluetooth;
iBeacon: the indoor positioning protocol has low power consumption and low signal cost;
RSSI: a received signal strength indication;
MQTT: message queue telemetry transmission.
Fig. 1 shows a general flow diagram according to an embodiment of the invention, the flow comprising: s100, automatically establishing connection with an external Internet of things gateway in a near field communication mode according to a request of a mobile terminal application program; s200, acquiring the equipment ID and/or the client ID of the peripheral equipment according to the near field communication information; s300, the mobile terminal application program sends a peripheral calling service request to the cloud server according to the request of the mobile terminal application program, the equipment ID and/or the client ID; and S400, completing a peripheral calling service request through the cloud server and sending the peripheral calling service request to the mobile terminal application program.
Fig. 2 is a schematic diagram of invoking a financial peripheral according to the present invention, and the architecture of the internet of things system of the financial peripheral is established: the financial peripheral equipment is connected through a peripheral Internet of things gateway, the peripheral Internet of things gateway is connected into a peripheral cloud service platform, the peripheral cloud service platform internally provides peripheral task scheduling and externally provides a micro-service calling mode based on an https mode, APP application applies for calling of the peripheral equipment to the peripheral cloud service platform through standard micro-service calling, the peripheral cloud platform initiates task scheduling to the corresponding system internal and external equipment, and returns a peripheral calling result to the application. All the peripheral Internet of things gateways and peripheral systems have unique identity IDs.
FIG. 3 is a flowchart illustrating a peripheral invocation flow according to an embodiment of the present invention, which includes:
the application acquires the peripheral identity ID needing to be called through a near field communication technology:
NFC label: the 'peripheral Internet of things gateway' is attached with an NFC label based on the NTAG standard. The NFC tag writes into the gateway's clientId (client ID), and if accurate to the device is required, a device deviceId (device ID) can be added. The contents of the content tag in the JSON format of the NFC tag are formed as follows:
{
“clientId”:“xxxxxxxxxx”,
"deviceId": "xxxxxxx"// optional
}
The mobile device application may obtain the tag content of the NFC tag through NFC awareness.
Bluetooth: the 'peripheral Internet of things gateway' is provided with a Bluetooth module of the iBeacon technology, and the Bluetooth can only be used for signal sensing and has no connection pairing function. The mobile device can calculate the distance through the RSSI value of the Bluetooth signal to obtain the Bluetooth MAC address of the closest device, and the formula is as follows:
by passing
And calculating the distance d between the mobile terminal and the peripheral equipment, wherein A is the RSSI absolute value at 1 m from the equipment, n is an environment attenuation factor, the mobile application uses the Bluetooth MAC address with the minimum d, and the gateway setting clientId corresponding to the MAC address is obtained through a peripheral cloud service platform.
And the mobile APP initiates a peripheral calling service request to a peripheral Internet of things approving cloud service platform according to the clientId and deviceId of the query result, and waits for a calling result.
And the peripheral cloud service platform receives the calling request and issues a peripheral calling task according to the clientId and the deviceId in the request. And returning the task calling result to the application terminal.
And the mobile application obtains a peripheral calling result and continues to perform a further service processing flow. The peripheral service may wait for the request of the next service call.
Fig. 4 is a block diagram showing the connection of the apparatus according to the embodiment of the present invention. The system comprises a mobile terminal, peripheral equipment, a cloud server and an Internet of things gateway, wherein the mobile terminal comprises a mobile terminal application program; the peripheral equipment is provided with an Internet of things gateway, and the Internet of things gateway comprises a Bluetooth module and an NFC label; the mobile terminal detects the gateway of the Internet of things in a corresponding near field communication mode according to the request of the application program of the mobile terminal and obtains the equipment ID and/or the client ID of the peripheral equipment through signal perception; and the cloud server completes task scheduling and task processing according to the request, the equipment ID and/or the client ID sent by the mobile terminal, and sends the result to the mobile terminal.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. A pairing-free fast peripheral calling method is characterized by comprising the following steps:
s100, automatically establishing connection with an external Internet of things gateway in a near field communication mode according to a request of a mobile terminal application program;
s200, the mobile terminal detects the gateway of the Internet of things in a corresponding near field communication mode according to the request of the application program of the mobile terminal, obtains the equipment ID and/or the client ID of the peripheral equipment through signal sensing, and sends a peripheral calling service request to a cloud server;
s300, completing a peripheral calling service request through the cloud server and sending the peripheral calling service request to a mobile terminal application program;
the near field communication mode comprises NFC communication and Bluetooth communication;
the S100 includes: automatically establishing connection with an NFC label based on the NTAG standard through NFC equipment of the mobile terminal, and writing label information of the NFC label corresponding to the peripheral into the gateway of the Internet of things;
the S200 includes: the method comprises the steps that label information sent by an internet of things gateway is obtained through a mobile terminal, and a corresponding peripheral equipment ID and/or a client ID are obtained through analysis;
the peripheral calling is realized through a micro-service calling mode based on an https mode, and comprises the steps of applying for calling of a peripheral to a peripheral cloud service platform through standard micro-service calling, initiating task scheduling to corresponding system internal and external devices by the peripheral cloud platform, and returning a peripheral calling result to an application.
2. The unpaired fast peripheral invocation method according to claim 1, wherein the calculating a distance via a Bluetooth signal RSSI value of the mobile terminal comprises: by passing
And calculating the distance d between the mobile terminal and the peripheral equipment, wherein A is the RSSI absolute value at a distance of 1 m from the equipment, and n is an environment attenuation factor.
3. The unpaired fast peripheral invocation method according to claim 2, wherein said S200 comprises:
and according to the Bluetooth MAC address, acquiring the peripheral equipment ID and/or the client ID corresponding to the MAC address through the cloud server.
4. The unpaired fast peripheral invocation method according to claim 1, further comprising:
and processing the request and the peripheral calling of each mobile terminal application program in a message queue telemetry transmission mode.
5. A pairing-free quick peripheral calling device is characterized by comprising a mobile terminal, peripheral equipment, a cloud server and an Internet of things gateway, wherein the mobile terminal comprises a mobile terminal application program; the peripheral equipment is provided with an Internet of things gateway, and the Internet of things gateway comprises a Bluetooth module and an NFC tag; the mobile terminal detects the gateway of the Internet of things in a corresponding near field communication mode according to the request of the mobile terminal application program, obtains the equipment ID and/or the client ID of the peripheral equipment through signal sensing, and sends a peripheral calling service request to the cloud server; the cloud server completes task scheduling and task processing according to the request, the equipment ID and/or the client ID sent by the mobile terminal, and sends the result to the mobile terminal;
the near field communication mode comprises NFC communication and Bluetooth communication;
the mobile terminal is used for automatically establishing connection with an NFC label based on the NTAG standard through NFC equipment and writing label information of the NFC label corresponding to the peripheral into the gateway of the Internet of things;
the mobile terminal is used for acquiring label information sent by the gateway of the Internet of things, and analyzing and acquiring the ID of the corresponding peripheral equipment and/or the ID of the client;
the peripheral calling is realized in a micro-service calling mode based on an https mode, a mobile terminal application program applies for calling of a peripheral to a peripheral cloud service platform through standard micro-service calling, the peripheral cloud platform initiates task scheduling to corresponding system internal and external devices, and a peripheral calling result is returned to the application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139619.2A CN112383904B (en) | 2020-10-22 | 2020-10-22 | Pair-free quick peripheral calling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139619.2A CN112383904B (en) | 2020-10-22 | 2020-10-22 | Pair-free quick peripheral calling method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112383904A CN112383904A (en) | 2021-02-19 |
| CN112383904B true CN112383904B (en) | 2023-03-14 |
Family
ID=74580649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011139619.2A Active CN112383904B (en) | 2020-10-22 | 2020-10-22 | Pair-free quick peripheral calling method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112383904B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114546394B (en) * | 2021-12-31 | 2023-02-28 | 电子科技大学 | Unified Internet of things peripheral access and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9173098B1 (en) * | 2013-11-25 | 2015-10-27 | Intuit Inc. | Methods, systems, and articles of manufacture for wirelessly pairing peripherals with connected devices |
| JP2017220730A (en) * | 2016-06-03 | 2017-12-14 | 日本電信電話株式会社 | Device id management server, device id management method and program |
| CN107683602A (en) * | 2015-06-05 | 2018-02-09 | 苹果公司 | Peer device based on high in the clouds close to pairing and switching |
| WO2020063048A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳前海达闼云端智能科技有限公司 | Pon network and communication method therefor, olt, mqtt-sn gateway, onu, and mqtt server |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6209675B2 (en) * | 2013-05-01 | 2017-10-04 | エルジー エレクトロニクス インコーポレイティド | Method and apparatus for performing a wireless docking service |
| US9535857B2 (en) * | 2013-06-25 | 2017-01-03 | Airwatch Llc | Autonomous device interaction |
| JP2015135997A (en) * | 2014-01-16 | 2015-07-27 | サイレックス・テクノロジー株式会社 | Peripheral device server |
-
2020
- 2020-10-22 CN CN202011139619.2A patent/CN112383904B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9173098B1 (en) * | 2013-11-25 | 2015-10-27 | Intuit Inc. | Methods, systems, and articles of manufacture for wirelessly pairing peripherals with connected devices |
| CN107683602A (en) * | 2015-06-05 | 2018-02-09 | 苹果公司 | Peer device based on high in the clouds close to pairing and switching |
| JP2017220730A (en) * | 2016-06-03 | 2017-12-14 | 日本電信電話株式会社 | Device id management server, device id management method and program |
| WO2020063048A1 (en) * | 2018-09-29 | 2020-04-02 | 深圳前海达闼云端智能科技有限公司 | Pon network and communication method therefor, olt, mqtt-sn gateway, onu, and mqtt server |
Non-Patent Citations (1)
| Title |
|---|
| 基于MQTT网关连接PLC与阿里云物联网平台的工业物联网系统;陆国君等;《物联网技术》;20191220(第12期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112383904A (en) | 2021-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8984186B2 (en) | Augmenting capabilities of a host device | |
| US11509505B2 (en) | Method and apparatus for operating smart network interface card | |
| CN114667753A (en) | Communication method and device, electronic device and storage medium | |
| US11711441B2 (en) | Method and apparatus for publishing video synchronously, electronic device, and readable storage medium | |
| US10165058B2 (en) | Dynamic local function binding apparatus and method | |
| WO2023151077A1 (en) | Communication method and apparatus, and electronic device and storage medium | |
| CN110753089A (en) | Method, device, medium and electronic equipment for managing client | |
| WO2022267635A1 (en) | Method and apparatus for data exchange | |
| CN114902717A (en) | WLAN perception measurement method and device, electronic equipment and storage medium | |
| KR102133514B1 (en) | Status message service providing method of electronic apparatus and electronic apparatus thereof | |
| CN112383904B (en) | Pair-free quick peripheral calling method and device | |
| WO2023197321A1 (en) | Wlan sensing measurement method and apparatus, electronic device and storage medium | |
| CN114513552B (en) | Data processing method, device, equipment and storage medium | |
| CN111641857A (en) | Interaction method and device of controlled equipment, interaction method and device of main control equipment, terminal and storage medium | |
| CN112714042B (en) | Pressure testing method and device, electronic equipment and storage medium | |
| CN106657076B (en) | TCP service implementation method and device for network name space | |
| CN112261651A (en) | Terminal control method and device, terminal and storage medium | |
| CN109981778B (en) | Method, device, equipment and storage medium for realizing service of content distribution network | |
| CN111626802A (en) | Method and apparatus for processing information | |
| CN111338642A (en) | Method, device, terminal and storage medium for determining application downloading path | |
| CN114513548B (en) | Directional call information processing method and device | |
| WO2023133695A1 (en) | Wlan sensing measurement method and apparatus, electronic device, and storage medium | |
| WO2023130331A1 (en) | Wlan sensing measurement method and apparatus, and electronic device and storage medium | |
| CN115052003B (en) | Data synchronization method, related device and medium | |
| WO2023164936A1 (en) | Communication method and apparatus, electronic device, and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |