Parcel locker with letterbox sensor comprising a mail sensor

Abstract

A parcel locker (10) for distribution of parcels and letter drop-off is provided. The parcel locker (10) includes a letterbox slot (20) for enabling letter drop-off, a plurality of compartments (30) each having an associated door (32) and lock (34), wherein the letterbox slot (20) is connected to a letter compartment (31), a communication module (40) for communication with a distribution server (90), a user-interaction module (50), one or more sensors (60) for detecting letters at the letterbox slot (20) or letter compartment (31), and a sensor controller (70) comprising a processor (72) and a controller computer-readable medium (74). The sensor controller (70) is configured to receive sensor data from the one or more sensors (60) and cause the communication module (40) to forward information to the distribution server (90).

Description

Field of the Invention

[0001] The field of the invention is parcel lockers including a letterbox for receiving letters and for collection of letters by a courier, wherein the letterbox includes sensors for enabling more efficient collection of letters by the courier.Background of the Invention

[0002] Parcel lockers have become increasingly popular in recent years as a convenient solution for package delivery and pickup. These automated systems allow carriers to securely deposit parcels for later retrieval by recipients, reducing failed delivery attempts and providing flexibility for consumers. As e-commerce continues to grow, parcel lockers help address the "last mile" challenge of getting packages to their final destinations efficiently.

[0003] While parcel lockers have primarily focused on package handling, there is an opportunity to expand their functionality to include letter mail as well. Traditional mailboxes and post office boxes remain common for letter delivery, but integrating letter capabilities into parcel lockers could provide a more comprehensive solution for both parcels and letters at a single access point.

[0004] However, simply adding a letter slot to a parcel locker system presents challenges. Unlike parcels which are typically tracked individually, letters dropped into a slot are not easily monitored or accounted for. This can lead to inefficiencies in letter collection and processing. Additionally, without a way to detect letter volume, the letter compartment may become overfilled before scheduled pickups occur.

[0005] Improving the tracking and monitoring of letters within parcel locker systems could provide benefits for locker operators, mail carriers, and end-users alike. Enhanced data on letter volumes and drop-off patterns would enable more optimized collection schedules and resource allocation. For users, having visibility into letter status could provide peace of mind that their mail has been received and will be processed.

[0006] As parcel lockers continue to evolve, there is an opportunity to develop more intelligent and connected systems that can handle diverse types of mail and provide enhanced data and functionality. Innovations in this area have the potential to further streamline and modernize mail delivery infrastructure.

[0007] The need for more efficient mail handling is needed as the total volume of letters are decreasing due to electronic alternatives such as e-mail or electronic communication platforms such as e-Boks or Digital Post. e-Boks or Digital Post are examples of communication platforms which are used by the Danish Government for digital communication with the citizens and thereby the number of letters has been reduced by many millions of documents. Thus, alternatives are required to make mail handling profitable.Object of the Invention

[0008] It is an object of the invention to provide a parcel locker which can also be used for letter drop-off and for collection by a mail carrier.Description of the Invention

[0009] An object of the invention is achieved by a parcel locker for distribution of parcels and for letter drop-off. The parcel locker comprises a letterbox slot for enabling letter drop-off; a plurality of compartments, each compartment having an associated door and lock for controlling access to the associated compartment, wherein the letterbox slot is connected to a letter compartment of the plurality of compartments; a communication module for direct or indirect communication with a distribution server; a user-interaction module for receiving instruction from a user and / or providing instruction to a user; one or more sensors for detecting letters at the letterbox slot or letter compartment; a sensor controller comprising a processor and a computer-readable medium, the controller being configured to receive sensor data from the one or more sensors and cause the communication module to forward information to a remote server.

[0010] The integration of a letterbox slot with a dedicated letter compartment within the parcel locker system provides a consolidated solution for both parcel and letter handling. This unified approach simplifies mail management and reduces the need for separate infrastructure for different types of mail. The inclusion of one or more sensors for detecting letters at the letterbox slot or letter compartment enables real-time monitoring of letter volume and drop-off patterns. This feature addresses the challenge of tracking individual letters, which has traditionally been difficult in conventional mailbox systems. This effect is achieved by the sensor controller, working in conjunction with the sensors, allowing for automated data collection and processing. This capability provides valuable insights into letter handling operations without requiring manual checks or interventions.

[0011] The communication module enables the parcel locker to transmit collected data to a distribution server, courier, or user. This connectivity facilitates more informed decision-making and allows for dynamic adjustments to collection schedules based on actual letter volumes. The communication module may include a long-range communication unit enabling direct communication with a distribution server. The long-range communication unit may be a Narrowband loT (NB-loT) enabling energy-efficient communication with the distribution server, which is important when the parcel locker is a battery-powered parcel locker. The communication module may include short-range communication such as Bluetooth, and / or Bluetooth low-energy, and / or ZigBee, and if the parcel locker is hardwired with power, then the short-range communication may be WI-FI. The sensor controller may be configured to have limited communication with the distribution server to save power consumption, hence it may communicate with the distribution server once or twice a day or in the event that a threshold value of one or more of the sensors has been reached by the one or more sensors.

[0012] The collection day of letters from a parcel locker will be planned ahead and known to at least the distribution server. The collection day may be the same weekday every week or may be a number of days from the last collection day. Every parcel locker may have different collection days based on the parcel locker mail-throughput and every parcel locker may have collection days based on the parcel locker mail-throughput.

[0013] The one or more sensors detects letters at the letterbox slot or letter compartment and enables real-time monitoring of letter drop-off and, thus, monitoring whether the letter compartment has received a letter or is empty. The distribution server can act accordingly, and a collection schedule can be made every day with a route for a mail carrier or a courier passing the parcel lockers which have received letters to collect the letters in the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters. There may be a fleet of parcel lockers comprising the letterbox slot and sensors and since mail volume of letters drops year on year, them the parcel locker according to claim 1 function as a bridging device between mail-heavy communication to electronic-heavy communication. If 75 % or 50 % or 25 % of the fleet of parcel lockers has detected a letter, then the planned route is determined according to which parcel lockers which has received at least one letter. The most effective route may change greatly as function of which parcel lockers having received a letter.

[0014] The one or more sensors may provide sensor data and the sensor controller may include one or more threshold values stored on the controller computer-readable medium, wherein the sensor data showing passing of the one or more threshold values cause the sensor controller to forward information to the distribution server via the communication module. The forwarded information causes the distribution server to update the collection day to a day earlier than the planned collection day. Thereby, if there has been a higher number of letters, and / or larger letters, and / or heavier letters than expected, then the distribution server can act accordingly and instruct a mail carrier or a courier collecting or delivering parcels to the parcel locker to collect the letters in the letter compartment, i.e., enable more efficient resource allocation for mail carriers or couriers.

[0015] The user-interaction module may be a display such as a touch screen, and / or a pin pad, and / or an NFC reader, and / or Bluetooth module, or a similar local wireless communication module for receiving instruction from a third-party device such as a smart phone. In the case of a Bluetooth module, the communication may be performed as described in WO19161870 or WO19161872. The user-interaction module may be a different module not listed as long as a user or a courier is able to instruct the parcel locker.

[0016] The integrated approach of combining parcel and letter handling in a single locker system maximizes space utilization and potentially reduces overall infrastructure costs compared to maintaining separate systems for parcels and letters. This is especially important as the number of letters is falling year on year while parcels are increasing year on year, and thereby the combination provides an economically viable alternative.

[0017] The letterbox slot can be any suitable shape enabling a person to insert a letter through the letterbox slot. In most embodiments the letterbox slot has a rectangular shape, however other shapes are possible.

[0018] In an aspect, the one or more sensors may comprise a motion sensor positioned to register insertion of letters through the letterbox. The motion sensor will detect motion past the sensor which can be translated into a number of insertion actions at the parcel locker, however, the detected number of insertion actions cannot be translated to a number of letters in the letter compartment, because if a stack of letters is inserted then this stack will be detected as a single insertion action. Although there is a degree of uncertainty, the number of insertion actions can be converted into an estimated number of letters by multiplying insertion actions with a letter factor.

[0019] One advantage of the motion sensors is that it enables real-time monitoring of letter drop-off and, thus, monitoring whether the letter compartment has received a letter or is empty. The distribution server can, therefore, act accordingly, and a collection schedule can be made every day with a route for a mail carrier or a courier passing the parcel lockers which have received letters to collect the letters in the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0020] In an aspect, the one or more sensors may comprise a distance sensor positioned at an upper position of the letter compartment for determining a height of letters. The distance sensor may be a sensor outputting and detecting a laser beam, or IR LED, or ultrasonic waves, or a combination. The distance sensor can be used to estimate a fill level of the letter compartment as a function of distance and said information can be forwarded to the distribution server.

[0021] In an aspect, the one or more sensors may comprise a weight sensor positioned at a compartment floor of the letter compartment. The weight sensor can be used for quantifying a fill level of the letter compartment.

[0022] In an aspect, the sensor controller comprises a short-range communication unit configured to wirelessly communicate with the communication module. A parcel locker is optimized for maximizing the compartment volume while minimizing the non-compartment volume and as a consequence, the space allocated for communication cables and power cables are very limited. The short-range communication unit will increase the total power consumption, however the short-range communication will at the same time make communication cables redundant, i.e., the parcel locker becomes more space efficient. The total increase in total power consumption can be limited by choosing an energy-efficient communication protocol such as but not limited to Bluetooth low-energy.

[0023] In an aspect, the sensor controller comprises a battery unit powering the sensor controller and the one or more sensors. The battery unit may be configured for powering the entire parcel unit, or the battery unit may be a local battery unit configured for only powering the sensor controller including sensors. The local battery unit will limit the need for power cables, thereby the parcel locker will become more space efficient.

[0024] An object of the invention is achieved by a method for letter collection at a parcel locker based on sensor data. The method comprises steps of providing a parcel locker; detecting one or more letters at the letterbox slot or at the letter compartment using the one or more sensors; transmitting via the communication module collection instructions to a courier based on the data of the one or more letters; opening the letter compartment for collection by the courier.

[0025] Thereby, the courier will only collect letters when it is deemed necessary by the sensor controller. Thus, the letter collections become more efficient.

[0026] Detection of letters at the letterbox slot or letter compartment enables real-time monitoring of letter drop-off and, thus, detection of whether the letter compartment has received a letter or is empty. Instructions to a courier can be transmitted daily, such that a daily collection schedule can be made, thereby providing the courier with a route only passing the parcel lockers which have received letters for collection from the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0027] In an aspect, the step of transmitting instructions to the courier is performed via a distribution server, wherein the distribution server performs the step of transmitting the collection instructions to the courier. The parcel locker may only communicate with a distribution server to simplify all communication from a fleet of parcel lockers. The distribution server may then communicate with the relevant courier service.

[0028] In an aspect, the one or more sensors include a motion sensor for detecting a letter drop-off and optionally a number of letters and a distance sensor to detect the filling state of the letter compartment.

[0029] In an embodiment, the step of providing may include providing a fleet of parcel lockers according to any of claims 1 to 6, wherein the parcel lockers of the fleet are distributed over an area; and the method further comprises a step of planning a collection route based on the step of detecting performed at each of the parcel lockers. Thereby, the most effective collection route can be planned using a computer. This will thereby reduce cost of mail collection which is important as the year on year mail volume is dropping in many countries.

[0030] In an embodiment, a reset may be performed upon opening of the letter compartment such that a letter count for the specific parcel locker is reset to zero. This reset may be transmitted to the distribution server such that the information is kept up to date for the entire parcel locker fleet.

[0031] An object is achieved by a fleet of parcel lockers comprising a plurality of parcel lockers according to any of claims 1 to 6. Thereby, a courier or mail collector will be able to plan a collection route using a computer having stored thereon a computer program calculating the most efficient collection route.

[0032] An object is achieved by a computer program product comprising instructions to cause the parcel locker to, according to the invention, execute the steps of the method.

[0033] An object is achieved by a computer-readable medium having stored thereon the computer program. The computer-readable medium may be a non-transitory computer-readable medium.Description of the Drawing

[0034] Embodiments of the invention will be described in the figures, whereon: Embodiments of the invention will be described in the figures, whereon: Fig. 1 illustrates isometric views of a parcel locker in two configurations; Fig. 2 illustrates an isometric view of a parcel locker; Fig. 3 illustrates isometric views of a parcel locker system in two configurations; Fig. 4 illustrates a parcel locker rack in four configurations; Fig. 5 illustrates a letter compartment system in two configurations; Fig. 6 illustrates a block diagram of a sensor controller system; and Fig. 7 illustrates a block diagram of a method for letter collection at a parcel locker. Detailed Description of the Invention

[0035] Item No Parcel locker10Letterbox slot20Compartment30Letter compartment31Door32Lock34Communication module40User-interaction module50Sensor60Motion sensor62Distance sensor64Weight sensor66Sensor controller70Processor72Controller computer-readable medium74Short-range communication unit76Battery unit78Distribution server90Method100Providing200Detecting300Transmitting400Opening500

[0036] The present disclosure provides a parcel locker designed to facilitate the efficient handling and collection of letters. This system incorporates a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0037] The parcel locker 10 system is further equipped with one or more sensors, strategically positioned to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. These sensors 60 provide real-time data on letter volume and drop-off patterns, contributing to the efficient management of letter collection.

[0038] In addition, the parcel locker 10 system includes a communication module 40, which enables the transmission of collected data to a distribution server 90, courier, or user. This feature allows for dynamic adjustments to collection schedules based on actual letter volumes, enhancing the overall efficiency of the system.

[0039] The parcel locker 10 system also includes a sensor controller 70, comprising a processor 72 and a computer-readable medium. The sensor controller 70 is configured to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to a remote server. This integrated approach to parcel and letter handling, combined with real-time monitoring and data transmission capabilities, provides a comprehensive solution for letter management.

[0040] In some embodiments, the parcel locker 10 system may include additional features such as a user-interaction module 50 for receiving instructions from a user or providing instructions to a user, a motion sensor 62 for detecting the insertion of letters, a distance sensor 64 for determining the height of letters in the compartment, and a weight sensor 66 for quantifying the fill level of the letter compartment 31.

[0041] In some cases, the sensor controller 70 may include a short-range communication unit for wireless communication with the communication module 40, and a battery unit 78 for powering the sensor controller 70 and the sensors 60. These features contribute to the space efficiency and energy efficiency of the parcel locker 10 system.

[0042] The parcel locker 10 as described herein provides a unified solution for the handling of both parcels and letters, offering potential advantages in terms of space utilization, infrastructure costs, and operational efficiency.

[0043] Referring to FIG. 1, the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the parcel locker 10 includes a letterbox slot 20 and a plurality of compartments 30. The letterbox slot 20 is designed to enable the drop-off of letters, providing a convenient and secure method for letter delivery. In some cases, the letterbox slot 20 may be positioned at a height that is easily accessible for users, facilitating the drop-off process.

[0044] The compartments 30 of the parcel locker 10 are arranged in a grid-like pattern, providing multiple storage spaces for parcels and letters. Typically, the compartments 30,31 are arranged in racks of compartments 30,31. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is be associated with a lock 34, which can be used to secure the contents of the compartment 30. The compartment can be opened via communication with the user-interaction module 50 (not shown in figure 1). The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32.

[0045] In the upper right quadrant of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters.

[0046] In configuration B, one of the compartments 30 is shown with an open door 32, revealing the interior of the compartment 30. This open compartment 30 demonstrates the parcel storage functionality of the locker 10. The interior of the compartments 30 are configured to accommodate parcels of various sizes.

[0047] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection. The sensors 60 measure in real-time but the information is not necessarily sent to a distribution server in real-time as this consumes energy and it is not strictly required in order for the letter collection to function properly. Instead, the sensor controller (not shown) may be configured to determine when to cause a communication module (not shown) of the parcel locker to forward information to the distribution server 90.

[0048] The communication module 40 may include a Bluetooth unit such as Bluetooth low-energy unit, and / or an NB-loT unit, and / or one or more energy consuming units such as GSM unit. In case of a Bluetooth unit, the communication module may communicate with the distribution server 90 as described in WO19161870 or WO19161872, i.e., via a third-party device such as a smart phone.

[0049] Referring to FIG. 2, the parcel locker 10 is depicted in an isometric view without a door 34 to better show an interior of the letterbox compartment 31. The parcel locker 10 comprises multiple compartments 30 arranged in a grid-like pattern. Each compartment 30,31 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30,31. In some cases, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is associated with a lock 34, which can be used to secure the contents of the compartment 30. The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32.

[0050] In the upper right quadrant of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters. The letter compartment 31 is configured to receive letters dropped off through the letterbox slot 20 and store them until they are collected.

[0051] One of the compartments 30 is shown with an open door 32, revealing the interior space. This open compartment 30 demonstrates the parcel storage functionality of the locker 10. The interior of the compartments 30 are configured to accommodate parcels of various sizes.

[0052] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0053] The parcel locker 10 integrates both letter and parcel handling capabilities within a single unit. The arrangement of compartments 30 allows for efficient use of space while providing separate areas for different types of mail items. The inclusion of the sensor 60 near the letterbox slot 20 suggests automated monitoring capabilities for the letter compartment 31.

[0054] The parcel locker of figure 2 may have all the features described for figure 1.

[0055] Referring to FIG. 3, the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the parcel locker 10 includes a letterbox slot 20 and a plurality of compartments 30. The letterbox slot 20 is designed to allow for the drop-off of letters, providing a convenient and secure method for letter delivery. In some cases, the letterbox slot 20 may be positioned at a height that is easily accessible for users, facilitating the drop-off process.

[0056] The compartments 30 of the parcel locker 10 are arranged vertically, providing multiple storage spaces for parcels and letters. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30.

[0057] In the upper portion of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters.

[0058] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0059] The parcel locker 10 further includes a user-interaction module 50, visible on the front face of the locker 10. In configuration A, the user-interaction module 50 is presented as a keypad or pin pad, while in configuration B, it appears as a display screen. The user-interaction module 50 is designed to receive instructions from a user or provide instructions to a user, enhancing the user-friendliness of the parcel locker 10. In some cases, the user-interaction module 50 may be a touch screen, a keypad, a biometric scanner, or any other type of user interface suitable for receiving user input or providing user output.

[0060] The parcel locker 10 also includes a communication module 40, represented by a wireless communication symbol. The communication module 40 is designed for direct or indirect communication with a distribution server 90, courier, or user. This feature allows for dynamic adjustments to collection schedules based on actual letter volumes, enhancing the overall efficiency of the system. In some cases, the communication module 40 may include a wireless communication unit, a wired communication unit, or any other type of communication unit suitable for transmitting and receiving data.

[0061] To the left of the parcel locker 10, a separate unit is depicted, representing a distribution server 90. The distribution server 90 is designed to receive data from the parcel locker 10 and manage the collection of letters based on this data. The distribution server 90 may be a computer server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 and the parcel locker 10 communicate wirelessly, as indicated by curved lines between the two components, however in some embodiments the distribution server 90 and the parcel locker 10 may have wired communication. This wireless communication allows for real-time updates on letter volume and drop-off patterns, contributing to the efficient management of letter collection.

[0062] The parcel locker 10 integrates letter and parcel handling capabilities into a single structure. The arrangement of compartments 30 allows for storage of items of different sizes. One compartment is shown with an open door 32, revealing a package inside, demonstrating the locker's parcel storage functionality. The user-interaction module 50 and communication module 40 suggest a system designed for remote management and user accessibility. The inclusion of the sensor 60 near the letterbox slot 20 indicates automated monitoring capabilities for the letter compartment 31.

[0063] Continuing with the description of FIG. 3, the parcel locker 10 is designed to facilitate the collection of letters based on sensor data. In some aspects, the method includes transmitting collection instructions to a courier based on the data of the letters via the communication module 40. The communication module 40 may be configured to transmit data wirelessly or via a wired connection, depending on the specific requirements of the system. The communication module 40 may include a variety of communication technologies, such as Bluetooth, Wi-Fi, cellular networks, or any other suitable communication technology.

[0064] In some cases, the collection instructions are transmitted to the courier via a distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive data from the parcel locker 10, process the data to generate collection instructions, and transmit the collection instructions to the courier. The distribution server 90 may communicate with the parcel locker 10 and the courier via a network, which may be a local area network (LAN), a wide area network (WAN), the internet, or any other suitable network.

[0065] In some embodiments, the distribution server 90 may be configured to receive data from multiple parcel lockers 10, process the data to generate collection instructions for each parcel locker 10, and transmit the collection instructions to the respective couriers. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0066] In some aspects, the distribution server 90 may be configured to receive data from the parcel locker 10 at predetermined intervals, in response to specific events, or based on other criteria. For example, the distribution server 90 may receive data from the parcel locker 10 every hour, whenever a letter is dropped off, or when the letter compartment 31 reaches a certain fill level. This allows for dynamic adjustments to the collection schedule based on actual letter volumes, enhancing the overall efficiency of the system. In another example, the distribution server 90 may receive data from the parcel locker daily or when a letter drop-off is detected. This allows the distribution server 90 to act accordingly and instruct a courier to collect the letter from the parcel locker 10. A collection schedule for the carrier only passing parcel lockers 10 where letters have been dropped-off can, thereby, be made daily, which enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0067] In some cases, the distribution server 90 may also communicate with the user-interaction module 50, allowing users to interact with the system, receive notifications, or perform other actions. For example, a user may be able to check the status of the letter compartment 31, request a collection, or perform other actions via the user-interaction module 50. This enhances the user-friendliness of the system and provides users with greater control over the letter collection process.

[0068] Referring to FIG. 4, racks of compartments 30 of a parcel locker 10 is depicted in four different configurations, labeled A, B, C, and D. The locks 34 are only shown in configuration D, but all configurations have locks 34. These configurations illustrate the flexibility of the parcel locker 10 in terms of compartment 30 arrangements and letterbox slot 20 positioning.

[0069] In all configurations, the parcel locker 10 comprises multiple compartments 30 stacked vertically. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is associated with a lock 34, which can be used to secure the contents of the compartment 30. The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32. In all configurations, the racks comprise a letterbox slot 20, a letter compartment 31, a sensor controller 70, and sensors 60.

[0070] In configuration A, the parcel locker 10 includes three compartments 30, a letterbox slot 20, and a letter compartment 31. The letterbox slot 20 is designed to allow for the drop-off of letters, providing a convenient and secure method for letter delivery. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20.

[0071] Configuration B presents a version of the rack of a parcel locker 10 with five compartments 30, 31, wherein one of the compartments being the letterbox compartment 31. The letterbox slot 20, letter compartment 31, sensor controller 70, and sensors 60 maintain their positions at the top of the structure. This configuration demonstrates the scalability of the parcel locker 10, which can be expanded to accommodate more compartments 30 as needed.

[0072] Configuration C displays a variation where the letterbox slot 20 is positioned higher in the locker structure relative to configuration A. This configuration illustrates the flexibility of the parcel locker 10 in terms of letter compartment 31 positioning. In some cases, the letter compartment 31 may be positioned at different heights within the rack of the parcel locker 10 to accommodate user preferences or specific operational requirements. Configuration C has the largest volume for receiving letters.

[0073] Configuration D shows a letter inside the letter compartment 31 being detected by a sensor 60.

[0074] Throughout all configurations of FIG. 4, the sensor controller 70 and sensors 60 are positioned near the letterbox slot 20, suggesting their role in monitoring letter insertion or presence in the letter compartment 31, however both the sensor controller 70 and the sensors 60 can be positioned differently depending on the sensor type. Examples of other positions of the sensors 60 are shown in FIGS. 5A and 5B, the shown embodiments in figure 4 may have any one or more of the shown sensors in FIGS. 5A and 5B. The sensor controller 70 and sensors 60 may include a variety of sensor types, such as motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters.

[0075] Referring to FIG. 5, the letter compartment system of the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the letter compartment 31 is represented by a rectangular. The letter compartment 31 is designed to receive letters dropped off through the letterbox slot 20 and store them until they are collected.

[0076] In configuration A, a view of the letter compartment 31 is shown. The letterbox slot 20 is depicted in a top part of the letter compartment 31 to increase the volume for letters.

[0077] The letter compartment 31 includes a sensor controller 70, positioned at the top left corner, however the sensor controller could be positioned in any other position such as but not limited to be positioned on the exterior side of the letter compartment 31 or outside the letter compartment 31. The sensor controller 70 is designed to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to the distribution server 90. This allows for real-time monitoring of the letter compartment 31, contributing to the efficient management of letter collection.

[0078] A motion sensor 62 is positioned to register the insertion of letters through the letterbox slot 20, hence the motion sensor is positioned at the letter box slot 20, however the motion sensor 62 could be positioned in a top part of the letter compartment 31 sensing movement in a direction toward the bottom of the letter compartment 31 such that any insertion of a letter or stack of letters is detected by the motion sensor. There may be two or more motion sensors 62. This allows for real-time detection of letter drop-off events, providing valuable data for the management of letter collection. The motion sensors 62, thus, detect whether the letter compartment has received a letter or is empty. A collection schedule can, therefore, be made every day with a route for a mail carrier or a courier which passes the parcel lockers which have received letters. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0079] Two distance sensors 64 are placed at the top of the letter compartment 31. Two distance sensors improve sensitivity, however, the invention will work with a single distance sensor 64. The distance sensors 64 are designed to measure the height of accumulated letters in the letter compartment 31, since when the height of letters increases then the one or two distance sensor 64 will measure a shorter and shorter distance. This provides an indication of the fill level of the letter compartment 31, allowing for efficient scheduling of letter collection.

[0080] At the bottom of the letter compartment 31, two weight sensors 66 are positioned configured to measure weight. The weight sensors 66 are designed to determine the weight of the letters in the letter compartment 31. The embodiment shows two weight sensors 66, however a single weight sensor 66 can be used. This provides additional data on the weight of letters in the letter compartment 31, contributing to the efficient management of letter collection.

[0081] The motion sensor 62 can only give a quantitative measurement of the number of letters as a user may insert a stack of letters at the same time, furthermore letters may have different sizes and different thickness. Hence, the combination of one, two or more motion sensors 62 combined with the one, two or more distance sensors 62 and / or one, two or more weight sensors 64 will provide improved data for the sensor controller 70. Then the one, two or more distance sensors 62 and / or the one, two or more weight sensors 64 can be used for estimating the number of letters by detecting the changes in height or weight as an insertion action performed by a user.

[0082] Configuration B discloses a letter compartment 31, wherein the two height sensors 64 are positioned on the walls measuring, at an angle, the distance to the bottom of the letter compartment 31. Otherwise, the letter compartment 31 of FIG. 5B has the same features as FIG. 5A for the same reasons as described for FIG. 5A.

[0083] In both configurations of FIG. 5, the arrangement of sensors allows for comprehensive monitoring of letter insertion and accumulation within the letter compartment 31. The motion sensor 62 can detect letter insertion, the distance sensors 64 can measure the height of accumulated letters, and the weight sensors 66 can determine the weight of the letters in the letter compartment 31. This integrated approach to sensor data collection provides a comprehensive picture of the status of the letter compartment 31, contributing to the efficient management of letter collection.

[0084] Any of the embodiments disclosed in FIGS. 1 to 4 may have one or more of the motion sensors 62, the distance sensors 64, and / or the weight sensors 66.

[0085] Referring to FIG. 6, the sensor controller system 70 of the parcel locker 10 is depicted. The sensor controller system 70 is an integral part of the parcel locker 10, designed to process and communicate sensor data within the parcel locker 10. The sensor controller system 70 comprises a processor 72, a controller computer-readable medium 74, a short-range communication unit 76, and optionally a battery unit 78.

[0086] The processor 72 may be a microprocessor, a microcontroller, a digital signal processor, or any other type of processor suitable for processing sensor data. In some cases, the processor 72 is configured to receive sensor data from the one or more sensors 60, process the sensor data, and generate instructions based on the processed sensor data.

[0087] The controller computer-readable medium 74 is designed to store data or instructions for the operation of the sensor controller system 70. The controller computer-readable medium 74 may be a memory chip, a hard drive, a solid-state drive, or any other hardware type of computer-readable medium suitable for storing data or instructions or a non-transitory controller computer-readable medium 74. In some aspects, the controller computer-readable medium 74 may store sensor data received from the one or more sensors 60, instructions generated by the processor 72, or any other data relevant to the operation of the sensor controller system 70. In some cases, the controller computer-readable medium 74 may store a computer program product comprising instructions to cause the parcel locker 10 to execute steps of a method for letter collection at a parcel locker 10 based on sensor data.

[0088] The short-range communication unit 76 is designed to enable wireless communication between the sensor controller system 70 and the communication module 40 of the parcel locker 10. The short-range communication unit 76 may include a Bluetooth unit, a Zigbee unit, or any other type of short-range communication unit suitable for wireless communication. If the parcel locker 10 and the sensor controller 70 is connected to hard-wired power, then the short-range communication unit 76 may be a Wi-Fi unit. In some cases, the short-range communication unit 76 may be configured to transmit sensor data or instructions from the sensor controller system 70 to the communication module 40 or receive data or instructions from the communication module 40.

[0089] The battery unit 78 is designed to provide power to the sensor controller system 70 and the one or more sensors 60. The battery unit 78 may be a rechargeable battery, a disposable battery, a solar-powered battery, or any other type of battery suitable for powering the sensor controller system 70 and the one or more sensors 60. The solar cell may be positioned on top of the parcel locker 10. In some aspects, the battery unit 78 may be configured to only supply power to the processor 72, the controller computer-readable medium 74, the short-range communication unit 76, and the one or more sensors 60, in this case the battery unit 78 is a local battery unit 78. The parcel locker 10 may have a locker battery unit for powering the main functions of the parcel locker 10.

[0090] The layout of the sensor controller system 70 is in essens a modular design where each component performs a specific function. The system is designed to process sensor data, store information, communicate wirelessly, and maintain power supply within an integrated unit. This integrated approach to sensor data management contributes to the efficient operation of the parcel locker 10.

[0091] Referring to Fig. 7, a method 100 for letter collection at a parcel locker 10 is depicted. The method 100 comprises four sequential steps: providing 200, detecting 300, transmitting 400, and opening 500. These steps contribute to the overall process of efficient letter handling at the parcel locker 10.

[0092] In the providing step 200, a parcel locker 10 as described in any of the previous fig-ures may be provided. The parcel locker 10 includes a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0093] In the detecting step 300, one or more letters at the letterbox slot 20 or at the letter compartment 31 are detected using the one or more sensors 60. The sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0094] In the transmitting step 400, collection instructions are transmitted to a courier based on the data of the one or more letters via the communication module 40. The communication module 40 may be configured to transmit data wirelessly or via a wired connection, depending on the specific requirements of the system. The communication module 40 may include a variety of communication technologies, such as Bluetooth, Wi-Fi, cellular networks, or any other suitable communication technology.

[0095] In some cases, the collection instructions are transmitted to the courier via a distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive data from the parcel locker 10, process the data to generate collection instructions, and transmit the collection instructions to the courier. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0096] In the opening step 500, the letter compartment 31 is opened for collection by the courier. The door 32 of the letter compartment 31 may be unlocked using the lock 34, allowing the courier to access the letters stored within the letter compartment 31. After the letters have been collected, the door 32 may be closed and locked again using the lock 34, securing the letter compartment 31 until the next collection.

[0097] In some aspects, the method 100 may be implemented as a computer program product comprising instructions to cause the parcel locker 10 to execute the steps of the method 100. The computer program product may be stored on a controller computer-readable medium 74 within the sensor controller 70. The processor 72 of the sensor controller 70 may be configured to execute the instructions of the computer program product, causing the parcel locker 10 to perform the steps of the method 100. This allows for automated execution of the method 100, enhancing the efficiency and reliability of letter collection at the parcel locker 10.

[0098] In some aspects, the parcel locker 10 may be configured to enable real-time tracking of a letter drop-off and optionally also the number of letters at each parcel locker or service point. This feature may be facilitated by the one or more sensors 60, which are configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. The sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensor data collected by the sensors 60 may be processed by the sensor controller 70, which includes a processor 72 and a controller computer-readable medium 74. The sensor controller 70 may be configured to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to a distribution server 90.

[0099] In some cases, the sensor controller 70 may be configured to process the sensor data in real-time, providing immediate updates on the number of letters at the letterbox slot 20 or within the letter compartment 31. This real-time processing of sensor data may enable the parcel locker 10 to provide real-time tracking of a letter drop-off and optionally also the number of letters at each parcel locker or service point. This feature may contribute to more efficient letter collection and distribution processes, as it allows for dynamic adjustments to collection schedules based on actual letter presence in the letter compartment 31 and / or letter volumes.

[0100] In other cases, the sensor controller 70 may be configured to process the sensor data at predetermined intervals, in response to specific events, or based on other criteria. For example, the sensor controller 70 may process the sensor data every hour, whenever a letter is dropped off, or when the letter compartment 31 reaches a certain fill level. This allows for flexibility in the tracking of letters, accommodating different operational requirements or user preferences.

[0101] In some aspects, the communication module 40 may be configured to transmit the processed sensor data to the distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive the processed sensor data from the communication module 40, process the data to generate collection instructions, and transmit the collection instructions to a courier. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0102] In some cases, the distribution server 90 may also communicate with the user-interaction module 50, allowing users to interact with the system, receive notifications, or perform other actions. For example, a user may be able to check the status of the letter compartment 31, request a collection, or perform other actions via the user-interaction module 50. This enhances the user-friendliness of the system and provides users with greater control over the letter collection process.

Examples

Embodiment Construction

[0035]

Item No

Parcel locker10

Letterbox slot20

Compartment30

Letter compartment31

Door32

Lock34

Communication module40

User-interaction module50

Sensor60

Motion sensor62

Distance sensor64

Weight sensor66

Sensor controller70

Processor72

Controller computer-readable medium74

Short-range communication unit76

Battery unit78

Distribution server90

Method100

Providing200

Detecting300

Transmitting400

Opening500

[0036]The present disclosure provides a parcel locker designed to facilitate the efficient handling and collection of letters. This system incorporates a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0037]The parce...

Field of the Invention

[0001] The field of the invention is parcel lockers including a letterbox for receiving letters and for collection of letters by a courier, wherein the letterbox includes sensors for enabling more efficient collection of letters by the courier.Background of the Invention

[0002] Parcel lockers have become increasingly popular in recent years as a convenient solution for package delivery and pickup. These automated systems allow carriers to securely deposit parcels for later retrieval by recipients, reducing failed delivery attempts and providing flexibility for consumers. As e-commerce continues to grow, parcel lockers help address the "last mile" challenge of getting packages to their final destinations efficiently.

[0003] While parcel lockers have primarily focused on package handling, there is an opportunity to expand their functionality to include letter mail as well. Traditional mailboxes and post office boxes remain common for letter delivery, but integrating letter capabilities into parcel lockers could provide a more comprehensive solution for both parcels and letters at a single access point.

[0004] However, simply adding a letter slot to a parcel locker system presents challenges. Unlike parcels which are typically tracked individually, letters dropped into a slot are not easily monitored or accounted for. This can lead to inefficiencies in letter collection and processing. Additionally, without a way to detect letter volume, the letter compartment may become overfilled before scheduled pickups occur.

[0005] Improving the tracking and monitoring of letters within parcel locker systems could provide benefits for locker operators, mail carriers, and end-users alike. Enhanced data on letter volumes and drop-off patterns would enable more optimized collection schedules and resource allocation. For users, having visibility into letter status could provide peace of mind that their mail has been received and will be processed.

[0006] As parcel lockers continue to evolve, there is an opportunity to develop more intelligent and connected systems that can handle diverse types of mail and provide enhanced data and functionality. Innovations in this area have the potential to further streamline and modernize mail delivery infrastructure.

[0007] The need for more efficient mail handling is needed as the total volume of letters are decreasing due to electronic alternatives such as e-mail or electronic communication platforms such as e-Boks or Digital Post. e-Boks or Digital Post are examples of communication platforms which are used by the Danish Government for digital communication with the citizens and thereby the number of letters has been reduced by many millions of documents. Thus, alternatives are required to make mail handling profitable.Object of the Invention

[0008] It is an object of the invention to provide a parcel locker which can also be used for letter drop-off and for collection by a mail carrier.Description of the Invention

[0009] An object of the invention is achieved by a parcel locker for distribution of parcels and for letter drop-off. The parcel locker comprises a letterbox slot for enabling letter drop-off; a plurality of compartments, each compartment having an associated door and lock for controlling access to the associated compartment, wherein the letterbox slot is connected to a letter compartment of the plurality of compartments; a communication module for direct or indirect communication with a distribution server; a user-interaction module for receiving instruction from a user and / or providing instruction to a user; one or more sensors for detecting letters at the letterbox slot or letter compartment; a sensor controller comprising a processor and a computer-readable medium, the controller being configured to receive sensor data from the one or more sensors and cause the communication module to forward information to a remote server.

[0010] The integration of a letterbox slot with a dedicated letter compartment within the parcel locker system provides a consolidated solution for both parcel and letter handling. This unified approach simplifies mail management and reduces the need for separate infrastructure for different types of mail. The inclusion of one or more sensors for detecting letters at the letterbox slot or letter compartment enables real-time monitoring of letter volume and drop-off patterns. This feature addresses the challenge of tracking individual letters, which has traditionally been difficult in conventional mailbox systems. This effect is achieved by the sensor controller, working in conjunction with the sensors, allowing for automated data collection and processing. This capability provides valuable insights into letter handling operations without requiring manual checks or interventions.

[0011] The communication module enables the parcel locker to transmit collected data to a distribution server, courier, or user. This connectivity facilitates more informed decision-making and allows for dynamic adjustments to collection schedules based on actual letter volumes. The communication module may include a long-range communication unit enabling direct communication with a distribution server. The long-range communication unit may be a Narrowband loT (NB-loT) enabling energy-efficient communication with the distribution server, which is important when the parcel locker is a battery-powered parcel locker. The communication module may include short-range communication such as Bluetooth, and / or Bluetooth low-energy, and / or ZigBee, and if the parcel locker is hardwired with power, then the short-range communication may be WI-FI. The sensor controller may be configured to have limited communication with the distribution server to save power consumption, hence it may communicate with the distribution server once or twice a day or in the event that a threshold value of one or more of the sensors has been reached by the one or more sensors.

[0012] The collection day of letters from a parcel locker will be planned ahead and known to at least the distribution server. The collection day may be the same weekday every week or may be a number of days from the last collection day. Every parcel locker may have different collection days based on the parcel locker mail-throughput and every parcel locker may have collection days based on the parcel locker mail-throughput.

[0013] The one or more sensors detects letters at the letterbox slot or letter compartment and enables real-time monitoring of letter drop-off and, thus, monitoring whether the letter compartment has received a letter or is empty. The distribution server can act accordingly, and a collection schedule can be made every day with a route for a mail carrier or a courier passing the parcel lockers which have received letters to collect the letters in the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters. There may be a fleet of parcel lockers comprising the letterbox slot and sensors and since mail volume of letters drops year on year, them the parcel locker according to claim 1 function as a bridging device between mail-heavy communication to electronic-heavy communication. If 75 % or 50 % or 25 % of the fleet of parcel lockers has detected a letter, then the planned route is determined according to which parcel lockers which has received at least one letter. The most effective route may change greatly as function of which parcel lockers having received a letter.

[0014] The one or more sensors may provide sensor data and the sensor controller may include one or more threshold values stored on the controller computer-readable medium, wherein the sensor data showing passing of the one or more threshold values cause the sensor controller to forward information to the distribution server via the communication module. The forwarded information causes the distribution server to update the collection day to a day earlier than the planned collection day. Thereby, if there has been a higher number of letters, and / or larger letters, and / or heavier letters than expected, then the distribution server can act accordingly and instruct a mail carrier or a courier collecting or delivering parcels to the parcel locker to collect the letters in the letter compartment, i.e., enable more efficient resource allocation for mail carriers or couriers.

[0015] The user-interaction module may be a display such as a touch screen, and / or a pin pad, and / or an NFC reader, and / or Bluetooth module, or a similar local wireless communication module for receiving instruction from a third-party device such as a smart phone. In the case of a Bluetooth module, the communication may be performed as described in WO19161870 or WO19161872. The user-interaction module may be a different module not listed as long as a user or a courier is able to instruct the parcel locker.

[0016] The integrated approach of combining parcel and letter handling in a single locker system maximizes space utilization and potentially reduces overall infrastructure costs compared to maintaining separate systems for parcels and letters. This is especially important as the number of letters is falling year on year while parcels are increasing year on year, and thereby the combination provides an economically viable alternative.

[0017] The letterbox slot can be any suitable shape enabling a person to insert a letter through the letterbox slot. In most embodiments the letterbox slot has a rectangular shape, however other shapes are possible.

[0018] In an aspect, the one or more sensors may comprise a motion sensor positioned to register insertion of letters through the letterbox. The motion sensor will detect motion past the sensor which can be translated into a number of insertion actions at the parcel locker, however, the detected number of insertion actions cannot be translated to a number of letters in the letter compartment, because if a stack of letters is inserted then this stack will be detected as a single insertion action. Although there is a degree of uncertainty, the number of insertion actions can be converted into an estimated number of letters by multiplying insertion actions with a letter factor.

[0019] One advantage of the motion sensors is that it enables real-time monitoring of letter drop-off and, thus, monitoring whether the letter compartment has received a letter or is empty. The distribution server can, therefore, act accordingly, and a collection schedule can be made every day with a route for a mail carrier or a courier passing the parcel lockers which have received letters to collect the letters in the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0020] In an aspect, the one or more sensors may comprise a distance sensor positioned at an upper position of the letter compartment for determining a height of letters. The distance sensor may be a sensor outputting and detecting a laser beam, or IR LED, or ultrasonic waves, or a combination. The distance sensor can be used to estimate a fill level of the letter compartment as a function of distance and said information can be forwarded to the distribution server.

[0021] In an aspect, the one or more sensors may comprise a weight sensor positioned at a compartment floor of the letter compartment. The weight sensor can be used for quantifying a fill level of the letter compartment.

[0022] In an aspect, the sensor controller comprises a short-range communication unit configured to wirelessly communicate with the communication module. A parcel locker is optimized for maximizing the compartment volume while minimizing the non-compartment volume and as a consequence, the space allocated for communication cables and power cables are very limited. The short-range communication unit will increase the total power consumption, however the short-range communication will at the same time make communication cables redundant, i.e., the parcel locker becomes more space efficient. The total increase in total power consumption can be limited by choosing an energy-efficient communication protocol such as but not limited to Bluetooth low-energy.

[0023] In an aspect, the sensor controller comprises a battery unit powering the sensor controller and the one or more sensors. The battery unit may be configured for powering the entire parcel unit, or the battery unit may be a local battery unit configured for only powering the sensor controller including sensors. The local battery unit will limit the need for power cables, thereby the parcel locker will become more space efficient.

[0024] An object of the invention is achieved by a method for letter collection at a parcel locker based on sensor data. The method comprises steps of providing a parcel locker; detecting one or more letters at the letterbox slot or at the letter compartment using the one or more sensors; transmitting via the communication module collection instructions to a courier based on the data of the one or more letters; opening the letter compartment for collection by the courier.

[0025] Thereby, the courier will only collect letters when it is deemed necessary by the sensor controller. Thus, the letter collections become more efficient.

[0026] Detection of letters at the letterbox slot or letter compartment enables real-time monitoring of letter drop-off and, thus, detection of whether the letter compartment has received a letter or is empty. Instructions to a courier can be transmitted daily, such that a daily collection schedule can be made, thereby providing the courier with a route only passing the parcel lockers which have received letters for collection from the letter compartment. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0027] In an aspect, the step of transmitting instructions to the courier is performed via a distribution server, wherein the distribution server performs the step of transmitting the collection instructions to the courier. The parcel locker may only communicate with a distribution server to simplify all communication from a fleet of parcel lockers. The distribution server may then communicate with the relevant courier service.

[0028] In an aspect, the one or more sensors include a motion sensor for detecting a letter drop-off and optionally a number of letters and a distance sensor to detect the filling state of the letter compartment.

[0029] In an embodiment, the step of providing may include providing a fleet of parcel lockers according to any of claims 1 to 6, wherein the parcel lockers of the fleet are distributed over an area; and the method further comprises a step of planning a collection route based on the step of detecting performed at each of the parcel lockers. Thereby, the most effective collection route can be planned using a computer. This will thereby reduce cost of mail collection which is important as the year on year mail volume is dropping in many countries.

[0030] In an embodiment, a reset may be performed upon opening of the letter compartment such that a letter count for the specific parcel locker is reset to zero. This reset may be transmitted to the distribution server such that the information is kept up to date for the entire parcel locker fleet.

[0031] An object is achieved by a fleet of parcel lockers comprising a plurality of parcel lockers according to any of claims 1 to 6. Thereby, a courier or mail collector will be able to plan a collection route using a computer having stored thereon a computer program calculating the most efficient collection route.

[0032] An object is achieved by a computer program product comprising instructions to cause the parcel locker to, according to the invention, execute the steps of the method.

[0033] An object is achieved by a computer-readable medium having stored thereon the computer program. The computer-readable medium may be a non-transitory computer-readable medium.Description of the Drawing

[0034] Embodiments of the invention will be described in the figures, whereon: Embodiments of the invention will be described in the figures, whereon: Fig. 1 illustrates isometric views of a parcel locker in two configurations; Fig. 2 illustrates an isometric view of a parcel locker; Fig. 3 illustrates isometric views of a parcel locker system in two configurations; Fig. 4 illustrates a parcel locker rack in four configurations; Fig. 5 illustrates a letter compartment system in two configurations; Fig. 6 illustrates a block diagram of a sensor controller system; and Fig. 7 illustrates a block diagram of a method for letter collection at a parcel locker. Detailed Description of the Invention

[0035] Item No Parcel locker10Letterbox slot20Compartment30Letter compartment31Door32Lock34Communication module40User-interaction module50Sensor60Motion sensor62Distance sensor64Weight sensor66Sensor controller70Processor72Controller computer-readable medium74Short-range communication unit76Battery unit78Distribution server90Method100Providing200Detecting300Transmitting400Opening500

[0036] The present disclosure provides a parcel locker designed to facilitate the efficient handling and collection of letters. This system incorporates a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0037] The parcel locker 10 system is further equipped with one or more sensors, strategically positioned to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. These sensors 60 provide real-time data on letter volume and drop-off patterns, contributing to the efficient management of letter collection.

[0038] In addition, the parcel locker 10 system includes a communication module 40, which enables the transmission of collected data to a distribution server 90, courier, or user. This feature allows for dynamic adjustments to collection schedules based on actual letter volumes, enhancing the overall efficiency of the system.

[0039] The parcel locker 10 system also includes a sensor controller 70, comprising a processor 72 and a computer-readable medium. The sensor controller 70 is configured to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to a remote server. This integrated approach to parcel and letter handling, combined with real-time monitoring and data transmission capabilities, provides a comprehensive solution for letter management.

[0040] In some embodiments, the parcel locker 10 system may include additional features such as a user-interaction module 50 for receiving instructions from a user or providing instructions to a user, a motion sensor 62 for detecting the insertion of letters, a distance sensor 64 for determining the height of letters in the compartment, and a weight sensor 66 for quantifying the fill level of the letter compartment 31.

[0041] In some cases, the sensor controller 70 may include a short-range communication unit for wireless communication with the communication module 40, and a battery unit 78 for powering the sensor controller 70 and the sensors 60. These features contribute to the space efficiency and energy efficiency of the parcel locker 10 system.

[0042] The parcel locker 10 as described herein provides a unified solution for the handling of both parcels and letters, offering potential advantages in terms of space utilization, infrastructure costs, and operational efficiency.

[0043] Referring to FIG. 1, the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the parcel locker 10 includes a letterbox slot 20 and a plurality of compartments 30. The letterbox slot 20 is designed to enable the drop-off of letters, providing a convenient and secure method for letter delivery. In some cases, the letterbox slot 20 may be positioned at a height that is easily accessible for users, facilitating the drop-off process.

[0044] The compartments 30 of the parcel locker 10 are arranged in a grid-like pattern, providing multiple storage spaces for parcels and letters. Typically, the compartments 30,31 are arranged in racks of compartments 30,31. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is be associated with a lock 34, which can be used to secure the contents of the compartment 30. The compartment can be opened via communication with the user-interaction module 50 (not shown in figure 1). The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32.

[0045] In the upper right quadrant of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters.

[0046] In configuration B, one of the compartments 30 is shown with an open door 32, revealing the interior of the compartment 30. This open compartment 30 demonstrates the parcel storage functionality of the locker 10. The interior of the compartments 30 are configured to accommodate parcels of various sizes.

[0047] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection. The sensors 60 measure in real-time but the information is not necessarily sent to a distribution server in real-time as this consumes energy and it is not strictly required in order for the letter collection to function properly. Instead, the sensor controller (not shown) may be configured to determine when to cause a communication module (not shown) of the parcel locker to forward information to the distribution server 90.

[0048] The communication module 40 may include a Bluetooth unit such as Bluetooth low-energy unit, and / or an NB-loT unit, and / or one or more energy consuming units such as GSM unit. In case of a Bluetooth unit, the communication module may communicate with the distribution server 90 as described in WO19161870 or WO19161872, i.e., via a third-party device such as a smart phone.

[0049] Referring to FIG. 2, the parcel locker 10 is depicted in an isometric view without a door 34 to better show an interior of the letterbox compartment 31. The parcel locker 10 comprises multiple compartments 30 arranged in a grid-like pattern. Each compartment 30,31 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30,31. In some cases, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is associated with a lock 34, which can be used to secure the contents of the compartment 30. The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32.

[0050] In the upper right quadrant of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters. The letter compartment 31 is configured to receive letters dropped off through the letterbox slot 20 and store them until they are collected.

[0051] One of the compartments 30 is shown with an open door 32, revealing the interior space. This open compartment 30 demonstrates the parcel storage functionality of the locker 10. The interior of the compartments 30 are configured to accommodate parcels of various sizes.

[0052] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0053] The parcel locker 10 integrates both letter and parcel handling capabilities within a single unit. The arrangement of compartments 30 allows for efficient use of space while providing separate areas for different types of mail items. The inclusion of the sensor 60 near the letterbox slot 20 suggests automated monitoring capabilities for the letter compartment 31.

[0054] The parcel locker of figure 2 may have all the features described for figure 1.

[0055] Referring to FIG. 3, the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the parcel locker 10 includes a letterbox slot 20 and a plurality of compartments 30. The letterbox slot 20 is designed to allow for the drop-off of letters, providing a convenient and secure method for letter delivery. In some cases, the letterbox slot 20 may be positioned at a height that is easily accessible for users, facilitating the drop-off process.

[0056] The compartments 30 of the parcel locker 10 are arranged vertically, providing multiple storage spaces for parcels and letters. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30.

[0057] In the upper portion of the parcel locker 10, a letter compartment 31 is positioned. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20. In some cases, the letter compartment 31 may be similar in size and shape to the other compartments 30, or it may be differently sized or shaped to accommodate letters.

[0058] The parcel locker 10 also includes one or more sensors 60, positioned near the letterbox slot 20. The sensors 60 may be configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. In some cases, the sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0059] The parcel locker 10 further includes a user-interaction module 50, visible on the front face of the locker 10. In configuration A, the user-interaction module 50 is presented as a keypad or pin pad, while in configuration B, it appears as a display screen. The user-interaction module 50 is designed to receive instructions from a user or provide instructions to a user, enhancing the user-friendliness of the parcel locker 10. In some cases, the user-interaction module 50 may be a touch screen, a keypad, a biometric scanner, or any other type of user interface suitable for receiving user input or providing user output.

[0060] The parcel locker 10 also includes a communication module 40, represented by a wireless communication symbol. The communication module 40 is designed for direct or indirect communication with a distribution server 90, courier, or user. This feature allows for dynamic adjustments to collection schedules based on actual letter volumes, enhancing the overall efficiency of the system. In some cases, the communication module 40 may include a wireless communication unit, a wired communication unit, or any other type of communication unit suitable for transmitting and receiving data.

[0061] To the left of the parcel locker 10, a separate unit is depicted, representing a distribution server 90. The distribution server 90 is designed to receive data from the parcel locker 10 and manage the collection of letters based on this data. The distribution server 90 may be a computer server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 and the parcel locker 10 communicate wirelessly, as indicated by curved lines between the two components, however in some embodiments the distribution server 90 and the parcel locker 10 may have wired communication. This wireless communication allows for real-time updates on letter volume and drop-off patterns, contributing to the efficient management of letter collection.

[0062] The parcel locker 10 integrates letter and parcel handling capabilities into a single structure. The arrangement of compartments 30 allows for storage of items of different sizes. One compartment is shown with an open door 32, revealing a package inside, demonstrating the locker's parcel storage functionality. The user-interaction module 50 and communication module 40 suggest a system designed for remote management and user accessibility. The inclusion of the sensor 60 near the letterbox slot 20 indicates automated monitoring capabilities for the letter compartment 31.

[0063] Continuing with the description of FIG. 3, the parcel locker 10 is designed to facilitate the collection of letters based on sensor data. In some aspects, the method includes transmitting collection instructions to a courier based on the data of the letters via the communication module 40. The communication module 40 may be configured to transmit data wirelessly or via a wired connection, depending on the specific requirements of the system. The communication module 40 may include a variety of communication technologies, such as Bluetooth, Wi-Fi, cellular networks, or any other suitable communication technology.

[0064] In some cases, the collection instructions are transmitted to the courier via a distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive data from the parcel locker 10, process the data to generate collection instructions, and transmit the collection instructions to the courier. The distribution server 90 may communicate with the parcel locker 10 and the courier via a network, which may be a local area network (LAN), a wide area network (WAN), the internet, or any other suitable network.

[0065] In some embodiments, the distribution server 90 may be configured to receive data from multiple parcel lockers 10, process the data to generate collection instructions for each parcel locker 10, and transmit the collection instructions to the respective couriers. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0066] In some aspects, the distribution server 90 may be configured to receive data from the parcel locker 10 at predetermined intervals, in response to specific events, or based on other criteria. For example, the distribution server 90 may receive data from the parcel locker 10 every hour, whenever a letter is dropped off, or when the letter compartment 31 reaches a certain fill level. This allows for dynamic adjustments to the collection schedule based on actual letter volumes, enhancing the overall efficiency of the system. In another example, the distribution server 90 may receive data from the parcel locker daily or when a letter drop-off is detected. This allows the distribution server 90 to act accordingly and instruct a courier to collect the letter from the parcel locker 10. A collection schedule for the carrier only passing parcel lockers 10 where letters have been dropped-off can, thereby, be made daily, which enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0067] In some cases, the distribution server 90 may also communicate with the user-interaction module 50, allowing users to interact with the system, receive notifications, or perform other actions. For example, a user may be able to check the status of the letter compartment 31, request a collection, or perform other actions via the user-interaction module 50. This enhances the user-friendliness of the system and provides users with greater control over the letter collection process.

[0068] Referring to FIG. 4, racks of compartments 30 of a parcel locker 10 is depicted in four different configurations, labeled A, B, C, and D. The locks 34 are only shown in configuration D, but all configurations have locks 34. These configurations illustrate the flexibility of the parcel locker 10 in terms of compartment 30 arrangements and letterbox slot 20 positioning.

[0069] In all configurations, the parcel locker 10 comprises multiple compartments 30 stacked vertically. Each compartment 30 is associated with a door 32, which can be opened or closed to access the interior of the compartment 30. In some aspects, the door 32 may be hinged, sliding, or otherwise movable to allow access to the compartment 30. Each door 32 is associated with a lock 34, which can be used to secure the contents of the compartment 30. The lock 34 may be a mechanical lock, an electronic lock, or any other type of lock suitable for securing the door 32. In all configurations, the racks comprise a letterbox slot 20, a letter compartment 31, a sensor controller 70, and sensors 60.

[0070] In configuration A, the parcel locker 10 includes three compartments 30, a letterbox slot 20, and a letter compartment 31. The letterbox slot 20 is designed to allow for the drop-off of letters, providing a convenient and secure method for letter delivery. The letter compartment 31 is connected to the letterbox slot 20, providing a dedicated space for the collection of letters dropped off through the letterbox slot 20.

[0071] Configuration B presents a version of the rack of a parcel locker 10 with five compartments 30, 31, wherein one of the compartments being the letterbox compartment 31. The letterbox slot 20, letter compartment 31, sensor controller 70, and sensors 60 maintain their positions at the top of the structure. This configuration demonstrates the scalability of the parcel locker 10, which can be expanded to accommodate more compartments 30 as needed.

[0072] Configuration C displays a variation where the letterbox slot 20 is positioned higher in the locker structure relative to configuration A. This configuration illustrates the flexibility of the parcel locker 10 in terms of letter compartment 31 positioning. In some cases, the letter compartment 31 may be positioned at different heights within the rack of the parcel locker 10 to accommodate user preferences or specific operational requirements. Configuration C has the largest volume for receiving letters.

[0073] Configuration D shows a letter inside the letter compartment 31 being detected by a sensor 60.

[0074] Throughout all configurations of FIG. 4, the sensor controller 70 and sensors 60 are positioned near the letterbox slot 20, suggesting their role in monitoring letter insertion or presence in the letter compartment 31, however both the sensor controller 70 and the sensors 60 can be positioned differently depending on the sensor type. Examples of other positions of the sensors 60 are shown in FIGS. 5A and 5B, the shown embodiments in figure 4 may have any one or more of the shown sensors in FIGS. 5A and 5B. The sensor controller 70 and sensors 60 may include a variety of sensor types, such as motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters.

[0075] Referring to FIG. 5, the letter compartment system of the parcel locker 10 is depicted in two configurations, labeled A and B. In both configurations, the letter compartment 31 is represented by a rectangular. The letter compartment 31 is designed to receive letters dropped off through the letterbox slot 20 and store them until they are collected.

[0076] In configuration A, a view of the letter compartment 31 is shown. The letterbox slot 20 is depicted in a top part of the letter compartment 31 to increase the volume for letters.

[0077] The letter compartment 31 includes a sensor controller 70, positioned at the top left corner, however the sensor controller could be positioned in any other position such as but not limited to be positioned on the exterior side of the letter compartment 31 or outside the letter compartment 31. The sensor controller 70 is designed to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to the distribution server 90. This allows for real-time monitoring of the letter compartment 31, contributing to the efficient management of letter collection.

[0078] A motion sensor 62 is positioned to register the insertion of letters through the letterbox slot 20, hence the motion sensor is positioned at the letter box slot 20, however the motion sensor 62 could be positioned in a top part of the letter compartment 31 sensing movement in a direction toward the bottom of the letter compartment 31 such that any insertion of a letter or stack of letters is detected by the motion sensor. There may be two or more motion sensors 62. This allows for real-time detection of letter drop-off events, providing valuable data for the management of letter collection. The motion sensors 62, thus, detect whether the letter compartment has received a letter or is empty. A collection schedule can, therefore, be made every day with a route for a mail carrier or a courier which passes the parcel lockers which have received letters. This enables more efficient resource allocation for mail carriers or couriers, and more efficient and faster expedition of the mailed letters.

[0079] Two distance sensors 64 are placed at the top of the letter compartment 31. Two distance sensors improve sensitivity, however, the invention will work with a single distance sensor 64. The distance sensors 64 are designed to measure the height of accumulated letters in the letter compartment 31, since when the height of letters increases then the one or two distance sensor 64 will measure a shorter and shorter distance. This provides an indication of the fill level of the letter compartment 31, allowing for efficient scheduling of letter collection.

[0080] At the bottom of the letter compartment 31, two weight sensors 66 are positioned configured to measure weight. The weight sensors 66 are designed to determine the weight of the letters in the letter compartment 31. The embodiment shows two weight sensors 66, however a single weight sensor 66 can be used. This provides additional data on the weight of letters in the letter compartment 31, contributing to the efficient management of letter collection.

[0081] The motion sensor 62 can only give a quantitative measurement of the number of letters as a user may insert a stack of letters at the same time, furthermore letters may have different sizes and different thickness. Hence, the combination of one, two or more motion sensors 62 combined with the one, two or more distance sensors 62 and / or one, two or more weight sensors 64 will provide improved data for the sensor controller 70. Then the one, two or more distance sensors 62 and / or the one, two or more weight sensors 64 can be used for estimating the number of letters by detecting the changes in height or weight as an insertion action performed by a user.

[0082] Configuration B discloses a letter compartment 31, wherein the two height sensors 64 are positioned on the walls measuring, at an angle, the distance to the bottom of the letter compartment 31. Otherwise, the letter compartment 31 of FIG. 5B has the same features as FIG. 5A for the same reasons as described for FIG. 5A.

[0083] In both configurations of FIG. 5, the arrangement of sensors allows for comprehensive monitoring of letter insertion and accumulation within the letter compartment 31. The motion sensor 62 can detect letter insertion, the distance sensors 64 can measure the height of accumulated letters, and the weight sensors 66 can determine the weight of the letters in the letter compartment 31. This integrated approach to sensor data collection provides a comprehensive picture of the status of the letter compartment 31, contributing to the efficient management of letter collection.

[0084] Any of the embodiments disclosed in FIGS. 1 to 4 may have one or more of the motion sensors 62, the distance sensors 64, and / or the weight sensors 66.

[0085] Referring to FIG. 6, the sensor controller system 70 of the parcel locker 10 is depicted. The sensor controller system 70 is an integral part of the parcel locker 10, designed to process and communicate sensor data within the parcel locker 10. The sensor controller system 70 comprises a processor 72, a controller computer-readable medium 74, a short-range communication unit 76, and optionally a battery unit 78.

[0086] The processor 72 may be a microprocessor, a microcontroller, a digital signal processor, or any other type of processor suitable for processing sensor data. In some cases, the processor 72 is configured to receive sensor data from the one or more sensors 60, process the sensor data, and generate instructions based on the processed sensor data.

[0087] The controller computer-readable medium 74 is designed to store data or instructions for the operation of the sensor controller system 70. The controller computer-readable medium 74 may be a memory chip, a hard drive, a solid-state drive, or any other hardware type of computer-readable medium suitable for storing data or instructions or a non-transitory controller computer-readable medium 74. In some aspects, the controller computer-readable medium 74 may store sensor data received from the one or more sensors 60, instructions generated by the processor 72, or any other data relevant to the operation of the sensor controller system 70. In some cases, the controller computer-readable medium 74 may store a computer program product comprising instructions to cause the parcel locker 10 to execute steps of a method for letter collection at a parcel locker 10 based on sensor data.

[0088] The short-range communication unit 76 is designed to enable wireless communication between the sensor controller system 70 and the communication module 40 of the parcel locker 10. The short-range communication unit 76 may include a Bluetooth unit, a Zigbee unit, or any other type of short-range communication unit suitable for wireless communication. If the parcel locker 10 and the sensor controller 70 is connected to hard-wired power, then the short-range communication unit 76 may be a Wi-Fi unit. In some cases, the short-range communication unit 76 may be configured to transmit sensor data or instructions from the sensor controller system 70 to the communication module 40 or receive data or instructions from the communication module 40.

[0089] The battery unit 78 is designed to provide power to the sensor controller system 70 and the one or more sensors 60. The battery unit 78 may be a rechargeable battery, a disposable battery, a solar-powered battery, or any other type of battery suitable for powering the sensor controller system 70 and the one or more sensors 60. The solar cell may be positioned on top of the parcel locker 10. In some aspects, the battery unit 78 may be configured to only supply power to the processor 72, the controller computer-readable medium 74, the short-range communication unit 76, and the one or more sensors 60, in this case the battery unit 78 is a local battery unit 78. The parcel locker 10 may have a locker battery unit for powering the main functions of the parcel locker 10.

[0090] The layout of the sensor controller system 70 is in essens a modular design where each component performs a specific function. The system is designed to process sensor data, store information, communicate wirelessly, and maintain power supply within an integrated unit. This integrated approach to sensor data management contributes to the efficient operation of the parcel locker 10.

[0091] Referring to Fig. 7, a method 100 for letter collection at a parcel locker 10 is depicted. The method 100 comprises four sequential steps: providing 200, detecting 300, transmitting 400, and opening 500. These steps contribute to the overall process of efficient letter handling at the parcel locker 10.

[0092] In the providing step 200, a parcel locker 10 as described in any of the previous fig-ures may be provided. The parcel locker 10 includes a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0093] In the detecting step 300, one or more letters at the letterbox slot 20 or at the letter compartment 31 are detected using the one or more sensors 60. The sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensors 60 provide real-time data on letter drop-off, letter volume, and drop-off patterns, contributing to the efficient management of letter collection.

[0094] In the transmitting step 400, collection instructions are transmitted to a courier based on the data of the one or more letters via the communication module 40. The communication module 40 may be configured to transmit data wirelessly or via a wired connection, depending on the specific requirements of the system. The communication module 40 may include a variety of communication technologies, such as Bluetooth, Wi-Fi, cellular networks, or any other suitable communication technology.

[0095] In some cases, the collection instructions are transmitted to the courier via a distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive data from the parcel locker 10, process the data to generate collection instructions, and transmit the collection instructions to the courier. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0096] In the opening step 500, the letter compartment 31 is opened for collection by the courier. The door 32 of the letter compartment 31 may be unlocked using the lock 34, allowing the courier to access the letters stored within the letter compartment 31. After the letters have been collected, the door 32 may be closed and locked again using the lock 34, securing the letter compartment 31 until the next collection.

[0097] In some aspects, the method 100 may be implemented as a computer program product comprising instructions to cause the parcel locker 10 to execute the steps of the method 100. The computer program product may be stored on a controller computer-readable medium 74 within the sensor controller 70. The processor 72 of the sensor controller 70 may be configured to execute the instructions of the computer program product, causing the parcel locker 10 to perform the steps of the method 100. This allows for automated execution of the method 100, enhancing the efficiency and reliability of letter collection at the parcel locker 10.

[0098] In some aspects, the parcel locker 10 may be configured to enable real-time tracking of a letter drop-off and optionally also the number of letters at each parcel locker or service point. This feature may be facilitated by the one or more sensors 60, which are configured to detect the presence of letters at the letterbox slot 20 or within the letter compartment 31. The sensors 60 may include motion sensors 62, distance sensors 64, weight sensors 66, or any other type of sensor suitable for detecting letters. The sensor data collected by the sensors 60 may be processed by the sensor controller 70, which includes a processor 72 and a controller computer-readable medium 74. The sensor controller 70 may be configured to receive sensor data from the one or more sensors 60 and cause the communication module 40 to forward information to a distribution server 90.

[0099] In some cases, the sensor controller 70 may be configured to process the sensor data in real-time, providing immediate updates on the number of letters at the letterbox slot 20 or within the letter compartment 31. This real-time processing of sensor data may enable the parcel locker 10 to provide real-time tracking of a letter drop-off and optionally also the number of letters at each parcel locker or service point. This feature may contribute to more efficient letter collection and distribution processes, as it allows for dynamic adjustments to collection schedules based on actual letter presence in the letter compartment 31 and / or letter volumes.

[0100] In other cases, the sensor controller 70 may be configured to process the sensor data at predetermined intervals, in response to specific events, or based on other criteria. For example, the sensor controller 70 may process the sensor data every hour, whenever a letter is dropped off, or when the letter compartment 31 reaches a certain fill level. This allows for flexibility in the tracking of letters, accommodating different operational requirements or user preferences.

[0101] In some aspects, the communication module 40 may be configured to transmit the processed sensor data to the distribution server 90. The distribution server 90 may be a remote server, a cloud server, or any other type of server suitable for receiving, processing, and transmitting data. The distribution server 90 may be configured to receive the processed sensor data from the communication module 40, process the data to generate collection instructions, and transmit the collection instructions to a courier. This allows for efficient management of letter collection across multiple parcel lockers 10, potentially reducing the time and resources required for letter collection.

[0102] In some cases, the distribution server 90 may also communicate with the user-interaction module 50, allowing users to interact with the system, receive notifications, or perform other actions. For example, a user may be able to check the status of the letter compartment 31, request a collection, or perform other actions via the user-interaction module 50. This enhances the user-friendliness of the system and provides users with greater control over the letter collection process.

Examples

Embodiment Construction

[0035]

Item No

Parcel locker10

Letterbox slot20

Compartment30

Letter compartment31

Door32

Lock34

Communication module40

User-interaction module50

Sensor60

Motion sensor62

Distance sensor64

Weight sensor66

Sensor controller70

Processor72

Controller computer-readable medium74

Short-range communication unit76

Battery unit78

Distribution server90

Method100

Providing200

Detecting300

Transmitting400

Opening500

[0036]The present disclosure provides a parcel locker designed to facilitate the efficient handling and collection of letters. This system incorporates a letterbox slot 20, multiple compartments 30, a variety of sensors 60, and communication capabilities. The letterbox slot 20 is designed to allow for the drop-off of letters, which are then stored in a dedicated letter compartment 31 within the parcel locker 10. The system includes multiple compartments 30, each equipped with an associated door 32 and lock 34, providing secure storage for both parcels and letters.

[0037]The parce...

Claims

1. A parcel locker (10) for distribution of parcels and for letter drop-off, the parcel locker (10) comprising: - a letterbox slot (20) for enabling letter drop-off; - a plurality of compartments (30), each compartment (30) having an associated door (32) and lock (34) for controlling access to the associated compartment (30), wherein the letterbox slot (20) is connected to a letter compartment (31) of the plurality of compartments (30); - a communication module (40) for direct or indirect communication with a distribution server (90), and / or courier, and / or user; - a user-interaction module (50) for receiving instruction from a user and / or providing instruction to a user; - one or more sensors (60) for detecting letters at the letterbox slot (20) or letter compartment (31); - a sensor controller (70) comprising a processor (72) and a controller computer-readable medium (74), the sensor controller (70) being configured to receive sensor data from the one or more sensors (60) and cause the communication module (40) to forward information to a distribution server (90).

2. A parcel locker (10) according to claim 1, wherein the one or more sensors (60) comprise - a motion sensor (62) positioned to register insertion of letters through the letterbox slot (20).

3. A parcel locker (10) according to claim 1 or 2, wherein the one or more sensors (60) comprise - a distance sensor (64) positioned at an upper position of the letter compartment (31) for determining a height of letters.

4. A parcel locker (10) according to any of claims 1 to 3, wherein the one or more sensors (60) comprise - a weight sensor (66) positioned at a compartment floor of the letter compartment (31).

5. A parcel locker (10) according to any of claims 1 to 4, wherein the sensor controller (70) comprises a short-range communication unit (76) configured to wirelessly communicate with the communication module (40).

6. A parcel locker (10) according to any of claims 1 to 5, wherein the sensor controller (70) comprises a battery unit (78) powering the sensor controller (70) and the one or more sensors (60).

7. A method (100) for letter collection at a parcel locker (10) based on sensor data, wherein the method (100) comprises steps of - providing (200) a parcel locker (10) according to any of claims 1 to 6; - detecting (300) one or more letters at the letterbox slot (20) or at the letter compartment (31) using the one or more sensors (60); - transmitting (400) via the communication module (40) collection instructions to a courier based on the data of the one or more letters; - opening (500) the letter compartment (31) for collection by the courier.

8. A method (100) according to claim 7, wherein the step of transmitting (400) instructions to the courier is performed via a distribution server (90), wherein the distribution server (90) performs a step of transmitting (400) the collection instructions to the courier.

9. A method (100) according to claim 7 or 8, wherein the one or more sensors (60) include a motion sensor (62) for detecting a number of letters and a distance sensor (64) to detect the filling state of the letter compartment (31).

10. A method (100) according to any of claims 7 to 9, wherein the step of providing (200) includes providing a fleet of parcel lockers (10) according to any of claims 1 to 6, wherein the parcel lockers (10) of the fleet are distributed over an area; and the method further comprises a step of - planning a collection route based on the step of detecting (300) performed at each of the parcel lockers (10).

11. A method (100) according to any of claims 7 to 10, wherein a reset is performed upon opening of the letter compartment (31).

12. A fleet of parcel lockers (10) comprising a plurality of parcel lockers according to any of claim 1 to 6.

13. A computer program product comprising instructions to cause the parcel locker according to any one of claims 1 to 6 to execute the steps of the method according to any of claims 7 to 11.

14. A computer-readable medium having stored thereon the computer program of claim 13.

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